State the problem that you are trying to solve. Make sure that the hypothesis clearly defines the topic and the focus of the experiment.
Do your findings back up your hypothesis?You might state that your findings SUPPORT the original hypothesis. If your original hypothesis does not match the final outcomes of your experiment, do not revise it. Instead, attempt to describe what went wrong with your first theory.
Several components of a laboratory report are frequently designated by titles. TITLE, INTRODUCTION, PROCEDURE, RESULTS, and DISCUSSION/CONCLUSION are typical sections of a report. Section headers should be in boldface if you are typing your work on a computer. A conclusion paragraph includes a summary of the experiment’s objective, a discussion of your significant results, an explanation of your findings, and suggestions for subsequent research.
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What information can be deduced from a pedigree? Select the TWO answers that are correct.
O the probability of a female being a carrier of an X-linked allele
O how an X-linked trait is passed down over generations
O the probability of a parent or grandparent being infertile
O how autosomal traits contribute to X-linked traits
O the probability that Y-chromosome analysis will prove paternity
Options A and B, the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations
A pedigree is a chart that shows the inheritance of a trait over several generations.
By analyzing a pedigree, it is possible to deduce information about the genetic makeup of family members and the probability of certain individuals being carriers of a particular allele.
Pedigrees can be used to identify X-linked traits, which are traits that are controlled by genes located on the X chromosome. X-linked traits are inherited differently than autosomal traits, and pedigrees can help to determine the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations.
However, it cannot be used to determine the probability of a parent or grandparent being infertile or how autosomal traits contribute to X-linked traits or the probability that Y-chromosome analysis will prove paternity.
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What are the two main components of the cell membrane
3. Discuss how the following cells are specialized /modified to their function. a) Root hair cell. (3 marks) b) Guard cell. (3marks) c) Palisade cell. (3 marks)
Specialized plant cells have specific adaptations that make them good at their function. They include root hair cell, guard cell and palisade cell.
How is the root hair cell modified?Because they have a wide surface area to speed up absorption, root hair cells are designed to absorb water and mineral ions. They also have a large number of mitochondria, which use glucose as fuel during respiration to produce the energy required for active transport.
What is the guard cells' functional modification?Adapted epidermal cells are referred to as guard cells. It has bigger size, chloroplasts, and micro fibrils in the cell wall that are oriented radially. In addition to providing a barrier against pathogenic invasion, each pair of guard cells and the controlled pore they enclose, known as a stoma or stomate, in terrestrial plants serve as a conduit for transpirational water release and atmospheric photosynthetic gas exchange.
How are palisade cells modified to perform their job?Long, thin Palisade Spongy Mesophyll Cells make up the palisade Layer. They are ideal for performing photosynthesis because they are rich in chlorophyll and have a long shape that promotes light absorption.
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___and___ are sex hormones secreted by the ovaries
Dear Teen World I feel so ugly. My face is covered in spots all the time, it's sore and red. I think it is acne but why has it happened so suddenly? Will it go away? Robert, age 14 Please help
It is to be noted that the sudden development of Acne during the teenage year is very normal. This is due to a growth stage called Puberty.
Why does the above condition occur?When hormones become active throughout puberty, oil glands are stimulated. That is why acne is more common in teenagers. Because acne is partially hereditary, if other members in your family had (or have) acne, you may be more likely to get it as well.
Teens get acne as a result of hormonal changes associated with puberty. If your parents experienced acne as teenagers, chances are you will as well. Acne, for the most part, disappears by the time a person is out of their teens.
The best approach to deal with this is to consult a dermatologist and wash your face and hands often.
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Answer:
Points
Explanation:
Face rashes,: HOW IT OCCURS.
POINTS:
Lack of bathing: People who do not bath regularly attract skin rashes on their faces. such rashes like Pimples ect. Bathing regularly can also protect your body from any face sports and also skin rashes.Malnutrition: Lack of balance diet in food. foods like fruit, and vegetables also protect your body from skin rashes it also protects your body from disease, which is found in the white blood cell called Phagocytes.Bleaching: changing pomade all the time bring rashes on your skin and also your face. Using one particular pomade all the time prevents skin rashes on the face and on the body.If seed production had never evolved, which organisms would be missing in today's landscape? O ferns and gymnosperms only O gymnosperms and angiosperms only
O bryophytes and fems only O angiosperms and bryophytes only
gymnosperms and angiosperms only. Potonié first postulated the presence of such a class of intermediate plants between pteridophytes and seed plants in 1899.
However it is now understood that ferns are not seed plants primary relatives. Compared to previous groupings like the clubmosses and ferns, gymnosperms have a number of important evolutionary novelties. They create pollen that contains, and the wind carries it to the female. These plants are no longer dependent on water for reproduction thanks to this invention. A relatively tiny class of plants known as gymnosperms produce "open seeds" and lack flowers. This means that unlike in a fruit, where the seeds are formed inside the reproductive structure, they are produced on the surface of the reproductive structure.
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In eukaryotes, nucleoli contain many tandem repeat copies of which genes, transcribed by RNA polymerase I? a. rRNA b. TRNA c. siRNA d. none of the answers is correct e. mRNA
Genes that are transcribed by the RNA polymerase ribosomal RNA rRNA, a protein in cells that is a component of a nutrient organelle known as just a ribosome, are found in tandem repeat copies in large numbers in the nucleoli of eukaryotes.
What is the purpose of rRNA?Rosposomal RNA rRNA is a molecule found in cells that's also exported to a cytoplasm and is a component of the ribosome, an organelle that produces proteins. It aids in the conversion of messenger RNA (mRNA) from one form of the genetic code to another, called translation.
In which location is rRNA made?The nucleolus is where rRNA in mammalian cells is made. A cell's nucleus contains the nucleolus, which is a substantial structure. The location of rRNA synthesis, it can be found in eukaryotic cells. Some nucleolus-located genes produce the rRNA protein.
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4. Plan an experiment that neurobiologists could use to show that an action potential travels faster along a myelinated axon than along a nonmyelinated axon.
What happens to plants in the absence of light? Select the TWO answers that are correct. O Chemical energy is produced using only water and carbon dioxide. O Chloroplasts use the energy in glucose to photosynthesize. O The process of photosynthesis shuts down.
O Plants stop generating chemical energy from light O Plants begin converting sugars into fats and proteins.
In the absence of light the plants stop generating chemical energy from light and The process of photosynthesis shuts down.
The process of photosynthesis is used by plants and other living things to transform light energy into chemical energy that may be released through cellular respiration to power the organism's activities.
Chemical energy is created during photosynthesis from solar or radiant energy. The rate of photosynthesis directly affects how much food is produced in agricultural crops. It furnishes the atmosphere with the oxygen that is necessary for all living things. It regulates the ecosystem's carbon dioxide and oxygen levels.
The four stages of photosynthesis include light absorption, electron transfer, ATP production, and carbon fixation. The equation for the photosynthetic process is 6CO2 + 6H2O → C6H12O6 + 6O2.
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Which of the following statements is TRUE about Fungi? All fungi are heterotrophic. All fungi are symbiotic. All fungi are flagellated. All fungi are pathogenic.
All fungi are heterotrophic is the true statement among the multiple options about fungi.
Fungi are eukaryotic organisms that are often seen as mushrooms, moulds and yeasts. These are heterotrophic organisms found everywhere. All of the fungi are not pathogenic evident by edible usage of mushrooms and yeasts.
Mycorrhiza and lichen are example of symbiotic fungi while Trichoderma is an example of free living fungi. The heterotrophic mode of nutrition of fungi is evident in multiple forms like parasite, saprophyte and holozoic nutrition.
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This is the process best utilized for brisk walking and jogging:
A. photosynthesis
B. anaerobic respiration
C. aerobic respiration
HINT: the answer is C
uuuhhhh it legit says the answer is c-
Fill In The Blanks Below
Choosing a fuel for a new machine is an important part of the design process and must take into consideration any environmental impact and waste produced by using the fuel. Fossil fuels, _______ resources including ________, natural gas, and oil, produce large amounts of harmful _______ when burned. Sustainable fuels, ______ resources including _______ and wind power, are considered more environmentally friendly because they do not produce much any waste. These fuels, however, can still have a large impact on the environment aesthetically by requiring large tracts of land for power collectors. So the pros and cons of each fuel must be weighed before choosing a fuel for the project.
Options:
greenhouse gases, solar power, renewable, nonrenewable, coal
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These
introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the
release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have
any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them.
When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly,
thereby altering biogeochemical cycles.
What is a possible negative consequence of introducing the non-native earthworms to forests in the Great Lake regions?
A. The earthworms reduce the resources available to other animals that eat dead plant matter.
B.The earthworm decreases the
energy flow from one tropic level to the next.
C. The earthworms provide an additional food source for primary consumers.
D. The earthworms burrow,
which reduces the nutrients, flow of air, and water underground.
Answer: B .The earthworm decreases the
energy flow from one tropic level to the next. Because that makes the most sense.
Explanation:
Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden’s lack of sensitivity to poison ivy is which kind of trait?
A) environmental
B) acquired
C) learned
D) inherited
hint: the answer is D)
Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden’s lack of sensitivity to poison ivy is a kind of trait which is inherited ans is therefore denoted as option D.
What is an Inherited trait?This is referred to as the type of traits which are transmitted by the parent to its offspring during the process of fertilization of the gametes during reproduction and this is made possible through them being coded in our DNA and hence can be passed on to the next generation.
We were told that Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy which means that the qualities mentioned were inherited by Jaden from his father and is therefore the reason why it was chosen as the correct choice.
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Which of the following reactions would you predict could be coupled to ATP hydrolysis to ADP + Pi?
Remember the hydrolysis of ATP has a ∆G = -7.3 kcal/mol
Select one:
a. creatine phosphate + H2O -> creatine + Pi, ∆G -10.3 kcal/mol
b. phosphoenolpyruvate + H2O -> pyruvate + Pi, ∆G -14.8 kcal/mol
c. glucose 6-phosphate + H2O -> glucose + Pi, ∆G -3.3 kcal/mol
d. glutamic acid + NH3 -> glutamine, ∆G +3.4 kcal/mol
e. glucose 1-phosphate + H2O -> glucose + Pi, ∆G -5.0 kcal/mol
d. glutamic acid + NH3 -> glutamine, ∆G +3.4 kcal/mol. ADP (adenosine diphosphate) is produced spontaneously by the hydrolysis of ATP (adenosine triphosphate) by organisms.
ATP Synthesis and Hydrolysis
An endergonic process is phosphorylation, or the condensation of phosphate groups onto AMP. Dephosphorylation, also known as the hydrolysis of one or two phosphate groups from ATP, on the other hand, is an exergonic process. A thermodynamically unfavourable reaction one that cannot proceed without the addition of energy is linked with a reaction that is thermodynamically favourable, has a negative delta G, or occurs spontaneously. The removal of a phosphate from ADP to create adenosine monophosphate also releases energy.
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Complete the Data Analysis and CER. Be sure to answer ALL the bullet point questions and complete a full CER using the data provided.
Reflection and observation from the graph's data and CER;
Graph's topic is "Life expectancy at birth, by gender, years, selected countries".x-axis represents selected countries, y-axis represents age.Life expectancy is higher in some countries like Norway all the way to Chile and drops drastically in others from Czech to Bulgaria.In the next 10 years, there will be even further decline in some of those countries with low life expectancy.What is a graph?A graph is a pictorial representation or diagram that represents data or values in an organized fashion. The graph's points frequently represent the relationship between two or more things.
CER (Comparative Effectiveness Research) is the study of which clinical and public health interventions work best for improving health. This graph representing the ages of male and females in different countries show a trend of how long they are expected to live.
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Ecology is best defined as the study of
A. populations.
B. rate of population changes.
C. communities.
D. organisms as they interact with other organisms and with their physical surroundings.
Ecology is the scientific study of the interactions and relationships between organisms and their physical environment. Thus option D is the correct answer.
It encompasses the study of populations, communities, and ecosystems, as well as the processes that drive changes in these systems over time.
Ecology also examines the impact of human activities on natural systems and seeks to understand the mechanisms that maintain the health and productivity of ecosystems.
This multidisciplinary field draws on concepts and techniques from biology, chemistry, physics, geology, and other sciences to provide a holistic understanding of the natural world and its functioning.
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If you count your heart beating 135 times in one minute, what is your approximate heart rate?
Answer:
135 bpm (bpm means beats per minute but write "bpm" not the whole thing since thats the proper way)
Explanation:
You feel your heart and count how many times it beats for one minute and whatever that number is, is the approximate heart rate, or bpm
Which of the following traits evolved last (most recently) on the one small step phylogeny? Digits eyes On top of flat head strong armlike bones not enough Information
C. Strong arm like bones was a trait evolved last according to "one small step" phylogeny.
How is a phylogenetic tree made? What is it?A phylogenetic tree is a pictorial display of the evolutionary relationships between various organisms. Phylogenetic trees are hypotheses rather than established truths. A phylogenetic tree's branching pattern demonstrates how several species or other groups developed from a number of common predecessors. Nowadays, DNA or protein sequences are used to generate the majority of phylogenetic trees.
Why is phylogenetic analysis used?Phylogenetics is a powerful method for figuring out how modern species have evolved. Scientists can explain the similarities and differences between species and learn more about how species have evolved by examining at phylogenetic trees.
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Which of the following traits evolved last (most recently) on the "one small step" phylogeny?
A) Digits
B) eyes On top of flat head
C) strong armlike bones
D) not enough Information to tell
Which of the following cartilaginous joints is found only in young; growing people? (A) costochondral joint (B) pubic symphysis: (C) intervertebral disc (D) epiphyseal plate.
Epiphyseal plate cartilaginous joints are found only in young; growing people
Children's and adolescents' long bones include a layer of cartilage called the epiphyseal plate, which is also referred to as the growth plate. The longitudinal growth of the bone is caused by this cartilage. Ossification, a process that occurs as a person grows, causes the cartilage to gradually give way to bone tissue, forming an epiphyseal line.
The growth plates vanish and the bones are fully developed after this process is complete, which typically occurs at the conclusion of puberty. Because of this, epiphyseal plate cartilaginous joints are not found in adults; rather, they are only found in children and people who are still growing.
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The amount of water inside a cell is a higher concentration than its external environment. If the cell is to maintain homeostasis, what must happen?
If the amount of water inside a cell is higher than its external environment, the cell must prevent water from flowing out of the cell to maintain homeostasis. This is done through the use of a selectively permeable membrane and various transport proteins.
A selectively permeable membrane is a barrier that surrounds the cell and only allows certain molecules to pass through. The membrane is made up of lipids and proteins, which act as gatekeepers to control the movement of molecules in and out of the cell. The membrane is selectively permeable, meaning it allows only certain molecules to pass through, such as oxygen and nutrients, and prevents others, such as toxins, from entering the cell.
In addition to the membrane, cells also have various transport proteins that help move molecules across the membrane. Some transport proteins, such as aquaporins, are specifically designed to transport water across the membrane. These proteins allow the cell to actively pump water into the cell against the concentration gradient, which is necessary to maintain homeostasis.
Overall, in order to maintain homeostasis, the cell must prevent water from flowing out of the cell, which is done through the use of a selectively permeable membrane and various transport proteins that act as gatekeepers to control the movement of water and other molecules in and out of the cell.
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An ecosystem is a natural unit consisting of all the living organisms in an area functioning together with all the nonliving physical factors of the environment.
Answer:
An ecosystem is a community of living organisms (biotic factors) and nonliving (abiotic) factors that interact with one another.
Explanation:
An ecosystem includes all of the living things (biotic factors) in a given area, interacting with each other and also with their non-living (abiotic) environment.
Ecosystems are larger than a habitat, or a community or a forest type.
Which of the following is not true regarding double stranded breaks (DSB)?
A. They usually arise due to exposure to UV light.
B. DSB repair is handled by the same factors involved in homologous recombination during meiosis
C. Mutations in genes involved in DSB repair can lead to cancer
D. DSB repair pathways were likely essential before genome sizes could increase in an organism
They usually arise due to exposure to UV light is not true regarding double stranded breaks (DSB).
DNA double-strand breaks (DSBs) can occur as a result of endogenous processes like DNA replication and repair as well as exogenous agents like radiation and certain chemicals.
Reactive oxygen species are byproducts of cellular metabolism that can damage DNA bases and lead to lesions that can obstruct the replication process. Double-strand breaks (DSBs) in the chromosome are the outcome.
The MRN complex (MRE11-RAD50-NBS1 [MRE11: meiotic recombinase 11, NBS1: nijmegan breakage syndrome1 protein]) recognises double-stranded DNA breaks (DSBs), and its interaction initiates a signalling cascade that causes the transcription of numerous genes involved in DNA repair.
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Both natural processes and human activity are causing some of Earth's permanent bodies of ice to melt. If enough of this ice melts, it will add warm freshwater to the northern Atlantic Ocean, where deep water currents start. What effect is this likely to have on the circulation of ocean water around the globe?
The melting of Earth's permanent bodies of ice, both through natural processes and human activity, is likely to have a significant effect on the circulation of ocean water around the globe.
What is ocean water?Ocean water is the saltwater found in all the world's oceans. It is composed of a complex solution of salts and other substances, including magnesium, calcium, sodium, and potassium, dissolved in water.
The melting of the ice will add a layer of warm freshwater to the northern Atlantic Ocean, which will mix with the colder and denser deep water currents that start in that region. This could disrupt the formation of deep water currents, which are responsible for driving the global ocean circulation. Without the deep water currents, the global ocean circulation could slow or even stop, leading to a disruption of the global climate system, with impacts on regional temperatures, weather patterns, and ocean life.
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just compare and contrast diploid and haploid cells
Haploid cells carry only a single set of chromosomes. Diploids contain two sets of chromosomes. Haploid cells are created through the process of meiosis. Diploid cells are formed through mitosis.
What is Haploid?Haploid refers to cells containing a single set of chromosomes. The term haploid may also refer to the number of chromosomes a gamete.In humans, gametes are haploid cells containing 23 chromosomes, each one of a pair of chromosomes present in diploid cells. Organisms that reproduce are diploid (from each parent he has two sets of chromosomes, one). Human cells are considered "diploid" because they inherit two sets of her chromosomes, 23 from her mother and 23 from her father, for a total of 46. The only exceptions are germ cells (egg and sperm), which are known as "haploid" cells because they contain one set of 23 chromosomes.To learn more about Haploid from the given link :
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please help!! Match the image to the phenomena it is showing. (MS-ESS1-1)
Image 1 is a solar eclipse
Image 2 is a lunar eclipse
What is an eclipse?An eclipse is an astronomical event that occurs when one celestial body, such as a moon or planet, moves into the shadow of another celestial body.
There are two main types of eclipses: solar eclipses, in which the moon blocks the sun's light from reaching the Earth, and lunar eclipses, in which the Earth blocks the sun's light from reaching the moon. These events can only happen during a new moon phase.
The kind of eclipse that has taken place can be seen when we look at the images that have been shown above.
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2. When bioengineering food crops, what are scientists manipulating?
PLEASE HELP MEEEE
The DNA of genetically modified (GE) foods has been altered using genes from other plants or animals. Scientists extract a desired characteristic gene from one plant or animal and implant it into the cell of another plant or animal.
Scientists can use genetic engineering to transfer desirable genes from one plant or animal to another. Genes can also be transferred from one species to another. GMOs are another term for genetically engineered organisms.The technique of developing GE foods differs from selective breeding. This entails choosing plants or animals with desirable characteristics and breeding them. This produces children with the desired characteristics over time.One of the drawbacks of selective breeding is that it might result in undesirable features. Scientists can use genetic engineering to insert a single gene. This prevents the introduction of additional genes with undesired properties. Genetic engineering also helps to accelerate the process of developing novel foods with desired characteristics.
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The products of photosynthesis serve as…?
a the reactants for cellular respiration
b the products for cellular respiration
c the source of carbon dioxide in our atmosphere
d none of the above
The products of photosynthesis serve as food for plant (oxygen and glucose).
What is photosynthesis?Photosynthesis the method through which green plants and some other creatures produce nutrients from carbon dioxide and water using sunshine. In most cases, the green pigment chlorophyll is used in photosynthesis in plants, which produces oxygen as a byproduct.
It is a process used by plants and other living things to change light energy into chemical energy that can then be released to power the organism's activities through cellular respiration.
The fossil fuels (coal, oil, and gas) that drive modern society today were created by plants using energy from photosynthesis carried out millions of years ago.
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The products of photosynthesis serve as
a. The reactants for cellular respiration.What is photosynthesis?Photosynthesis is the process by which plants transform sunlight, water, and carbon dioxide into oxygen and sugar-based energy.
The majority of the oxygen in the atmosphere is also created by photosynthesis. The vast majority of species would disappear, there would soon be no food or other organic materials on Earth, and there would finally be very little gaseous oxygen left in the atmosphere.
Oxygen and sugar, byproducts of photosynthesis, are the reactants of cellular respiration. Cells of both plants and animals engage in cellular respiration. During photosynthesis, plants use sunlight to transform solar energy into sugar production, ATP production, and oxygen release.
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what does adp stands for
Answer: adenosine diphosphate
Explanation:
Answer: ADP stands for adenosine diphosphate
Explanation: Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells. ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atom of ribose. The diphosphate group of ADP is attached to the 5’ carbon of the sugar backbone, while the adenine attaches to the 1’ carbon.
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trevor wanted to find out which type of fertalizer was the best
The best fertilizers for Trevor to use in his growing experiment of marigold is IV: Type of fertilizer, DV: Growth of marigolds and for Control: No fertilizer.
What is the benefit of fertilizer?Fertilizer provides essential nutrients to plants to support their growth and development. These nutrients include nitrogen, phosphorus, and potassium, which are necessary for the growth of roots, stems, leaves, and flowers.
Additionally, fertilizer can improve soil structure, increase water-holding capacity, and provide essential micronutrients that are important for healthy plant growth. The type of fertilizer for Trevor's experiment is Growth of marigolds (Miracle Grow, Scott's fertilizer, no fertilizer) and for control, no fertilizer(all three treatments are compared).
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The full question is:
Trevor wanted to find out what fertilizer worked best for growing marigold. He out Miracle Grow on one, Scott's fertilizer on one, and no fertilizer on the other.