The only nitrogen plants can absorb is nitrate. Nitrogen assimilation in plants. Plants absorb nitrogen from the soil in the form of nitrate (NO3−) and ammonium (NH4+). In aerobic soils where nitrification can occur, nitrate is usually the predominant form of available nitrogen that is absorbed.
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The photo shows frog eggs at the edge of a pond.
Which two factors might keep some of the eggs from becoming adult frogs
that produce their own eggs?
Answer:
a
Explanation:
100 POINTS!! Pls help!
(I messed up putting the points on the other one)
Down syndrome, the most common genetic condition in the United States, is also known as Trisomy 21. What does this mean.
A. A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell.
Tracy has a blood type of AB and her husband, Trevor, also has a blood type of AB. What are the
possible blood types of their children? Make a Punnett Square and summarize the phenotypic
percentages!!!
If Tracy has a blood type of AB and Trevor is also AB, then their children may have AA, BB or AB genotypes.
What is a Punnett square?A Punnett square is a diagram to represent the possible gametic combinations that will produce one or more genotypes in offspring.
In this case, the Punnett square is:
A B
A AA AB
B AB BB
In consequence, the children may have as genotypes the AA (25%), BB (25%), or AB (50%) genotypes.
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I WILL GIVE THE BRAINLEST TO WHOEVER ANSWERS THIS FIRST PLS I NEED HELP AND QUICK.
What is the difference between a scientific theory and a scientific law?
O A. A theory is a description of natural events. A law attempts to
explain the causes of natural events.
B. A law is an educated guess. A theory is a fact.
C. A law is a description of natural events. A theory attempts to
explain the causes of natural events.
D. A theory is an educated guess. A law is a fact,
Answer:
the answer should be C since a theory is not correct to be an educated guess.
A plant specimen has seeds that are enclosed by a fruit. which type of plant is it?
Angiosperms are plant specimen that has seeds that are enclosed by a fruit.
What are angiosperms?Angiosperms are well-defined plants with stems, roots, and leaves.They are vascular plants ( they have xylem and phloem tissues to transport water minerals throughout the body).Their seeds are enclosed in fruit and include flowering plants.Hence, "Angiosperms" is the correct answer.
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The basic elements of the nervous system are called:.
Answer:
the central nervous system and the peripheral nervous system
Explanation:
The nervous system has two main parts:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
government and business use incentive to
Answer:
Governments and businesses use incentive to encourage or deter behaviour
Explanation:
Governments will do things like putting tax breaks on individuals to encourage them to do something, or putting additional taxes on things such as cigarettes. Employers do this through bonuses and pay cuts.
1. Recently, researchers have demonstrated that the bacteria that causes Lyme disease alter dendritic cells. How do T-cells work to protect us from pathogens like the one that causes Lyme disease?
T-cells work to protect the body from pathogens by attacking and destroying cells infected with pathogens.
What are T-cells?T-cells are a group pf white blood cells which play a role in adaptive immunity.
T-cells work by attacking and killing cells infected with pathogens.
In the case of the infection of the dendritic cells by bacteria causing Lyme disease, the T-cells work to protect the body by attacking and destroying cells infected with bacteria.
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Answer:
Yup!
Explanation:
Which of the following identifies why SRI would be useful in developing nations?
SRI does not use modern tools, but changes old planting patterns to be both more productive and more frugal.
SRI encourages clearing of wasted forest and grassland for agricultural use.
SRI encourages traditional rice growing techniques, making use of existing expertise.
SRI uses high-tech farming techniques that make users integrate with developed nations to maintain the system.
SRI encourages traditional rice growing techniques, making use of existing expertise is true about their usefulness in developing countries.
What is SRI?Socially responsible investment or "green" or ethical investing refer to a type of investment approach that majorly seeks to consider both financial return and social or environmental good or wellness so as to to bring about social change that is positive.
Therefore, SRI encourages traditional rice growing techniques, making use of existing expertise is true about their usefulness in developing countries.
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what is the difference between segregation and independent assortment? Will give brainiest award/ 72 points
Answer:
The Law of Segregation states that the members of each pair of alleles separate when gametes are formed. A gamete will receive one allele or the other. The Law of Independent assortment states that two or more pairs of alleles segregate independently of one another during gamete formation, so basically the Law of Independent Assortment, also known as "Inheritance Law", means that the inheritance pattern of one trait will not affect the inheritance pattern of another.
Explanation:
Question 4 of 5
Which moon of Jupiter is covered in craters?
O A. lo
O B. Callisto
O C. Europa
O D. Ganymede
Answer:
B. Callisto
Explanation:
The moon of Jupiter which is covered with craters is Callisto
Both liver cells and lens cells have the genes for making the proteins albumin and crystalline. However, only liver cells express the blood protein albumin and only lens cells express crystalline, the main protein in the lens of the eye. Both of these genes have enhancer sequences associated with them.
The claim that gene regulation results in differential gene expression and influences cellular products (albumin or crystallin) is best supported by evidence in which of the following statements?
Liver cells possess transcriptional activators that are different from those of lens cells.
Liver cells and lens cells use different RNA polymerase enzymes to transcribe DNA.
Liver cells and lens cells possess the same transcriptional activators.
Liver cells and lens cells possess different general transcription factors.
The correct statement is liver cells possess transcriptional activators that are different from those of lens cells.
What are Transcriptional activators?Transcriptional activators are specific protein sequences capable of activating gene expression.
These transcription factors (transcriptional activators) act to regulate gene expression in target cells.
Transcriptional activators are factors that enable the expression of certain genes in particular cell types.
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17. Which physical law states that all orbits are conic sections?
A. Kepler's first law
OB. Kepler's third law
O C. Newton's laws
D. Kepler's second and third laws
Answer:
Keplar's First Law
Explanation:
#PennFoster
JHMS
Name the process:
binary,fission budding,vegetative propagation, regeneration
Answer:
Fission Budding
Explanation:
I hope this helps. I think it may be right.
Sea urchins tend to have great camouflage because they sometimes carry what two animals on there shells?
Sea urchins tend to have great camouflage because they sometimes carry algae and rocks on their shells.
What is camouflage?Camouflage is a defense mechanism used by certain organisms to avoid predation or surprisingly attack their prey.
Different animals possess different camouflage mechanisms. For example;
Chameleons change their color to that of their immediate environmentCertain snakes hide in vegetations that blend with their skin color.However, sea urchins are aquatic animals that tend to have great camouflage because they sometimes carry algae and rocks on their shells.
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The network of nerves that regulate digestive motility, secretion, and blood flow is called the __________ system.
In a plant with genotype Gg for pod color, what percentage of the gametes will have:
the dominant (G) allele? _________, the recessive )g) allele? _______
Answer: dominant allele will be green seeded and the ressecieve allele will be yellow seeded
Explanation:
Write a paragraph to justify Earth’s past Plate movements by explaining three pieces of evidence presented in the article. Highlight each of the three pieces of evidence.
Fossils, galciers and complementary coastlines are the evidences of earth's past plate movements.
How justify Earth’s past Plate movements?Modern continents hold clues to show their past events such as fossils, glaciers, and complementary coastlines. These evidences help in revealing about the plates that once fit together. Fossils tell us when and where plants and animals once existed.
So we can conclude that fossils, galciers and complementary coastlines are the evidences of earth's past plate movements.
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EXPLAIN WHY SMALL MAMMALS SUCH AS MOLES FEED MORE FREQUENTLY THAN LARGER ONES SUCH AS ELEPHANT0
Answer: Small mammals have large surface area to volume ratio hence lose heat quickly to environment; to replace the heat, lost, their metabolism is high making them to feed more frequently.
Explanation:
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Genetic change caused by mutations in DNA can lead to?
Answer:
Sometimes, gene variants (also known as mutations) prevent one or more proteins from working properly. By changing a gene's instructions for making a protein, a variant can cause a protein to malfunction or not be produced at all.
which of the following best describes the cycle of matter between humans and the environment?
A: humans exhale carbon dioxide which plants use in cellular respiration
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
C: humans inhale oxygen from plants which is used in photosynthesis to produce carbon dioxide
D: humans exhale carbon dioxide which plants use in photosynthesis to produce more carbon dioxide
Answer:
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
Explanation:
what does erosion do?
A. It changes rock chemically
B.it changes rock particles into rock
C.it breaks rock down physically
D.it moves pieces of rock Please answer fast its due today
the answer to this problem is c
How is this unlike making a photocopy of the original dna molecule
Answer:
The process of DNA replication results in a copy of the original DNA molecule. True or false: DNA does not have to break apart to be copied. After DNA replication is complete, there are two new DNA molecules; one molecule has both of the original strands and one molecule has two new strands of DNA.
Explanation:
Purple petal color in pea plants is dominant to white petal color. Two heterozygous pea plants are crossed. What is the ratio of the offspring with white petals to the total number of offspring?
Answer:
25%
Explanation:
crossing two heterozygous plants would look like this Pp x Pp
making a chart
P p
P PP Pp
p Pp pp
what this means is that the capital P isdminant so thats what will show is the dominant purple petal whereas lower case p is the ressecive white petal
this means 25% of offspring will be white :)
Suppose you walk out from your shaded house into the full sun of a desert afternoon and begin sweating. Your sweat glands in this scenario are.
Answer:
trying to keep you cool by putting out moisture
Which protist group is thought to be most closely related to animals?.
Answer:
Choanoflagellates are the closest relatives of animals. They are also single-celled protists and have a flagella at one end of their cell.
Explanation:
The closest living relative of the animal is the protist choanoflagellates, that reproduce sexually and asexually.
Choanoflagellates are marine and freshwater protozoa that are widely distributed around the world. They have a distinctive flagellum with a whip-like shape and a collar made up of shorter hairs, similar to the ‘collar’ cells that filter out food in sponges.
By feeding on bacteria and debris, they feed on their larger predators and bring dissolved organic matter back into the water column. In terms of both number and feeding rate, Choanoflagellates play a vital role in the microbial food web that sustains the global ecosystem.
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How has the global warming affected the ecosystem
Answer:
disorder in ecosystems
Explanation:
The ecosystems are having a disorder due to the too rapid change of the environment since many organisms cannot adapt quickly to the new climate. An example of this is the Arctic, due to its warming too quickly, causing polar bears to migrate south and mix with grizzly bears, changing the ecosystem.
The __________ collect(s) urine, which drains continuously from the papillae, and empty it into the __________
The calyces collect urine, which drains continuously from the papillae, and empty it into the renal pelvis.
What are the calyces?The calyces are specialized chambers located in the kidneys which are required to pass the liquid (i.e., the urine).
The calyces are fundamental for the normal functioning of the urinary system and normal body functioning.
The renal pelvis refers to the renal portion of the structure known as the pelvis (it is a bone structure).
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pls help ill give brainliest and 5 stars
For question 4: the Euroasian plate is the largest plate since it includes most of Europe and parts of Asia (Answer: third choice)
For question 5: the South American plate is plate number 3 because the south American continent lies within plate number 2 (Answer: third choice)
Hope that helps!)
Describe what happens to an organism’s energy storage molecules when it reproduces.
Answer:
Energy is required for organisms to survive, grow, respond to stimuli, reproduce, and carry out all other biological processes. Molecules' potential energy can be transformed to chemical energy, which can then be translated to kinetic energy, allowing an organism to move.
Explanation: