Answer:
Here since the person above wants to be 3 years old, lemme try to help you, the answer will be D. Organ
Explanation:
A student wants to know what effect temperature will have on the germination rate of radish seeds. To test this, she obtains 3 petri dishes and 60 radish seeds. She places 20 seeds in the first petri dish and stores it at room temperature. She places another 20 seeds in the second dish and places it in the freezer. She places 20 seeds in the third petri dish and places the dish in an incubator. Over the next two weeks, she waters the dishes daily and records the number of seeds germinate. At the end of the experiment she calculates the germination rate for the seeds at each temperature.
Hypothesis: ____________________________
Experimental Group: ____________________________
Control Group: ____________________________
Manipulated Variable (IV): ____________________________
Responding Variable (DV): ____________________________
Constants: ____________________________
Answer:
Hypothesis: IF the temperature is high, THEN the germination rate of radish seeds will increase.
Experimental Group: 20 Seeds in petri-dishes placed in the freezer and incubator each
Control Group: 20 seeds stored at room temperature
Manipulated Variable (IV): TEMPERATURE
Responding Variable (DV): GERMINATION RATE
Constants: Amount of water, same amount of time (2 weeks)
Explanation:
- The hypothesis is a testable explanation given to an observed problem. A possible hypothesis is IF the temperature is high, THEN the germination rate of radish seeds will increase.
- Independent or manipulated variable is the variable that is changed or manipulated variable in an experiment. The TEMPERATURE is the independent variable in this case.
- Dependent or responding variable is the variable that is measured in an experiment. In this case, the dependent variable is the GERMINATION RATE
- The experimental group is the group that receives the experimental treatment. In this case, the experimental group is the 20 Seeds in petri-dishes placed in the freezer and incubator each.
- The control group is the group that does not receive the experimental group. In this case, the control group is the 20 seeds stored or placed at room temperature.
- Constants are the variables that are kept unchanged throughout the experiment. In this case, the constants are Amount of water, same amount of time (2 weeks)
Answer:
GIVE ME MY POINTS NOW
Explanation:
Suppose that you began a one-year study of tuberculosis (TB) in St. Petersburg on January 1st, 2018. You enrolled 200 residents in your study and checked on their TB status on a monthly basis. At the start of your study on January 1st, you screened all 200 residents. Upon screening, you found that 10 of the healthy residents were immigrants who were vaccinated for TB and so were not at risk. Another 10 residents already had existing cases of TB on January 1st. On February 1st, two residents developed TB. On April 1st, three more residents developed TB. On July 1st, three of the residents who had existing TB on January 1st died from their disease. The study ended on December 31, 2018. Assume that once a person gets TB, they have it for the duration of the study, and assume that all remaining residents stayed healthy and were not lost to follow-up.
What was the prevalence of TB in the screened community on January 1st?
Answer: 5%
Explanation:
The Prevalence rate is the term used to describe the percentage of a population that have contacted the disease being tested for. It is usually done over a certain period or a certain time.
The prevalence of TB in the screened community on January 1st therefore is;
= Number of infected/ No. of Tested residents
= 10/200
= 5%
What part of the cell determines the type and order of the amino acids that make up a protein?
Answer:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
When is ozone considered a pollutant?
a in the stratosphere
b. in the mesosphere
c. in the troposphere
d. in the thermosphere
Answer:
C. in the troposphere
Explanation:
edge 2020
Ozone definitely protects us from various harmful radiations and prevent the direct entry of UV rays falling on Earth. There is a case in which if ozone is present at the ground level it is considered as a pollutant. the correct answer is option C.
What is the hole associated with the ozone layer ?It is the black hole that is continuously rising and getting bigger in size though the more study about it is still unsolved.
Ozone high in Earth's atmosphere protects from the sun's dangerous radiation. But on the ground level, ozone is definitely an air pollutant that spoils people and plants. Ground-level ozone formed when nitrogen oxides along with the volatile organic compounds reacts to each other in sunlight and more hot temperatures.
Ozone at ground scale is a harmful air pollutant because of the effects on people and the related environment and it is main ingredient in “smog."
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What is culture? What does culture mean to you?
Answer:
The arts and other manifestations of human intellectual achievement regarded collectively
Explanation:
Answer:
The arts and other manifestations of human intellectual achievement regarded collectively
After Pedro had breakfast, he went for a run. Identify at least three energy transformations that had to take place to allow Pedro to complete his run. Then use evidence to support the claim that energy in this system was conserved as it was transformed.
1) Chemical to mechanical (calories -> muscle contractions)
2) mechanical to mechanical (muscle -> motion)
3) mechanical to thermal (motion -> heat from the body causes sweating)
The potential energy is stored in the body chemically (via food). That potential energy is then released when the body is put in motion.
Your Leg is made up of:
A. many cells
B.one cell
C.Eubacteria
D.an organ
Someone help please
Answer:
a
Explanation:
in order to release energy through aerobic processes like cellular respiration, cells need to have access to which of the following gasses?
A
Nitrogen
B
Water vapor
C
Carbon Dioxide
D
Oxygen
Thought and memory pass across synapses in the brain. What are the neural circuits transmitted by new or reactivated pathways called
Answer:
Neuronal networks
Explanation:
Neuronal networks are made of neurones that give the ability of understanding relationship in a set of data. It functions in similar way to brain function.
Neuronal networks are able to adapt to changes in input and give appropriate output.
A simple example of neuronal network is a system made up of neurones at input layer, hidden layer, and output layer.
Self learning occurs in this network as it can use past experience to better respond to a given stimulus
The endocrine glands
a. transmit information from the sensory organs to the brain.
b. secrete hormones directly into the bloodstream.
c. are instrumental in producing myelin, which protects the neurons.
d. secrete neurotransmitters into the brain.
Answer:
B.secrete hormones directly into the bloodstream
Does a raccoon eat a parrot?
Answer:
Explanation:
yes
which two maps would you use if you wanted to determine the tallest mountain in the United States?
A. Topographic map
B. Road map
C. Relief map
D. Resource map
Answer:
A and C
Explanation:
If a red-eye female fly is crossed with a red-eye male fly, could they produce offspring with white eyes? Briefly explain your answer. Your answer must include a Punnett square that proves your answer.
If the red-eye parents are homozygous, no. But if the red-eye parents are heterozygous, yes.
Monohybrid crossingWe are assuming that the red-eye trait is dominant over the white-eye trait. If two red-eye parents are crossed with one another, whether they could produce white-eye offspring would depend on the zygosity level of the parents.
Assuming that red-eye is R and white-eye is r. If the two parents are homozygous red-eyed, their genotypes would be RR. Crossing the two:
RR x RR
RR RR RR RR
All the offsprings would be RR and there is a zero chance of producing a white-eye offspring.
Now, assuming that the two parents are heterozygous:
Rr x Rr
RR Rr Rr rr
Both RR and Rr are red-eyed while rr is white-eyed. The Punnet's square for the cross can be found in the attached image.
In other words, it will only be possible for the two red-eye parents to produce white-eye offspring if they are both heterozygous. Any other genotype will give a zero chance of white-eye offspring.
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helpppppppppppppppppppppppppp
Answer: B
Explanation:
As the temperature rises, the graph shows that the solubility increases
Which of the following things is common to all living organisms?
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
What are the two types of carbohydrates? Describe the differences between them
An aquifer must contain a permeable layer of rock, sand, or soil. Which is true about a permeable rock layer?
soo! a sloping layer of permeable rock sandwiched between two layers of impermeable rock and exposed at the surface. The permeable rock is called the aquifer, and the top layer of impermeable rock is called the CAPROCK. Well through which water flows freely without being pumped.
i hope this helped! <3
Which joins amino acid together?
Answer:
peptide bonds
Explanation:
i am correct
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
The peptide bonds are used to join to form polypeptides, proteins, and amino acids.
What are the functions of centrioles
Answer:
Centriol play a major role in cell division (mitosis)
Explanation:
Help coordinate cell division (only in animal cells)
What caused Antarctica’s climate to change from a more temperate climate to its current climate?
A)
isolation from the other continents
B)
El Niño
C)
being surrounded by ocean
D)
volcanic eruptions
E)
all of the above
Answer:
E
Explanation:
Answer:
E) All of the above
Explanation:
Got it right on the test
Which products do not have scientific studies supporting their claims to be beneficial when used?
A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function
Cofactors do not bind to the enzyme, whereas coenzymes frequently bind loosely to an enzyme's active site and help recruit substrates. Coenzymes are organic compounds. Thus, option A is correct.
What is the importance of Cofactors and coenzymes?Cofactors and coenzymes are substances that support the proper operation of an enzyme or protein.
Cofactors are organic and inorganic substances that help enzymes catalyze processes. The majority of coenzymes are vitamin derivatives that are soluble in water by phosphorylation.
Typically, cofactors are used to provide chemical groups or qualities that are absent from other chemical groups.
A cofactor like ATP, for instance, has a special capacity for transferring energy to power chemical reactions like the activity of enzymes and transport proteins.
Therefore, Cofactors and coenzymes to support enzyme function.
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What does the study of embryology tell us about evolution?
Answer:Embryology, the study of the development of the anatomy of an organism to its adult form, provides evidence for evolution as embryo formation in widely-divergent groups of organisms tends to be conserved. ... Another form of evidence of evolution is the convergence of form in organisms that share similar environments.
Explanation:it will help you with anatpony
A biochemist extracts a molecule from a cell. This molecule catalyzes a chemical reaction. To what class of molecules does it belong?
A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic acids
Answer:
proteins create enzymes which speed up reaction
Enzymes are the molecules that catalyze biological reactions, while a catalyst is a material that aids in the occurrence of a chemical reaction, hence option A is correct.
How do enzymes catalyze chemical reactions?The crucial function of decreasing the activation energy of chemical events inside the cell is carried out by the majority of enzymes, which are proteins.
Enzymes are biological catalysts that significantly speed up reaction rates and have the propensity to be particular about particular reactants and products, a substrate is a term for the reactant in an enzyme-catalyzed process.
Proteins are called enzymes to catalyze biological reactions that would not occur without them. For chemical reactions like digestion and cellular metabolism, these enzymes are necessary.
Therefore, since enzymes are a specific type of protein that catalyzes chemical events inside cells, they are excellent therapeutic targets, hence option A is correct.
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At the end of glycolysis, there is a net gain of _____ ATP and 2 molecules of ________ are made.
Question 3 options:
4, NAPH
2, pyruvic acid
4, glucose
2, NAD+
2. Which of the following is the most likely reason why scientists use
approximate measurements?
O A. Scientists never use approximate measurements as that would be unscientific.
B. Scientists use approximate measurements to determine whether the data they
collected is reasonable.
C. Scientists use approximate measurements to record images of objects or
environments in a brief interval of time.
D. Scientists use approximate measurements to help take measurements that cannot
be detected by the senses alone.
How do convection currents cause the motion of tectonic plates??
Answer:
These tectonic plates rest upon the convecting mantle, which causes them to move. The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains.
Explanation:
Which of these often describes an ecosystem with high biodiversity
challenging to survival
resilient
susceptible to disease
competitive
Answer:
Among those resilient often describes an ecosystem with high biodiversity
which 3 reactions form atp?
Answer:
Answer below
Explanation:
The eight steps of the citric acid cycle are a series of redox, dehydration, hydration, and decarboxylation reactions. Each turn of the cycle forms one GTP or ATP as well as three NADH molecules and one FADH2 molecule, which will be used in further steps of cellular respiration to produce ATP for the cell.
SSESSMENT QUESTIONS
? Which of the following is the best description of the process shown in the image below?
Ada
co
Output
CHO
Coger and share inouts the carbon dicede and glucose are outouts.
Bercer carbon diode and light are nous and glucoses the aut
coded here is leger and glucose are tots
Image attached
Answer Options
A. Water and oxygen plus light produce carbon dioxide and glucose.
B. Water, oxygen and carbon dioxide plus light produce glucose.
C. Water and carbon dioxide plus light produce oxygen and glucose.
D. Glucose and oxygen plus light produce carbon dioxide and water.
Answer:
C. Water and carbon dioxide plus light produce oxygen and glucose.
Explanation:
The image shown shows a chloroplast, with light, CO2 and water producing C6H12O6 and oxygen. This is the process of photosynthesis, where green plants make sugar from carbon dioxide and water using the energy in sunlight.
Answer:
C.
Explanation:
Answer on gizmos
I NEED HELP ASAP Sensors on a spider's legs feel the vibrations of a trapped insect and relay the information to the spider's brain through nerve electrical signals. For nerve cells to maintain these electrical potentials, sodium must be removed from the cell and potassium must be moved into the cell. Describe why this process is a form of active transport and what is required for active transport to occur?
Answer:
Please find the explanation below
- Energy (ATP) is needed for active transport to occur
Explanation:
According to this question, sensor's on a spider's legs relay information via nerve electrical signals to the brain when the vibrations of a trapped insect is felt. However, for nerve cells to maintain this electric potential, ACTIVE TRANSPORT must be carried out by removing sodium from the cell and potassium must be moved into the cell.
This is a form of ACTIVE TRANSPORT because pottasium ions are moved into the cell against concentration gradient i.e. from a region where it is in low concentration to where it is in high concentration. This active transport process is usually accompanied by the use of energy in form of ATP.