The flow of energy in an aquatic ecosystem phytoplankton → zooplankton → fish → mammal.
What does the bottom-up model?The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction.
whereas the top-down effect refers to a higher trophic level that influences the community structure of a lower trophic level through predation.
Thus, opotion "B" is correct.
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Which statement regarding viral diseases is false? AIDS was around for decades before becoming a widespread epidemic. Very few new human diseases have originated in other animals because the genetic differences are too great. RNA viruses tend to have an unusually high rate of mutation because their RNA genomes cannot be corrected by proofreading. New viral diseases often emerge when a virus infects a new host species.
The statement 'very few new human diseases have originated in other animals because the genetic differences are too great' regarding viral diseases is false.
What is a viral disease?A viral disease is an infection caused by a virus that may be spread to cause pandemic and epidemic situations.
Viruses are non-living forms and/or entities that are present in a suitable host to reproduce and survive.
In many situations, viruses mutate in order to pass from a type of host (animal) to a human host.
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Name the process:
binary,fission budding,vegetative propagation, regeneration
Answer:
Fission Budding
Explanation:
I hope this helps. I think it may be right.
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:
The network of nerves that regulate digestive motility, secretion, and blood flow is called the __________ system.
Hello people ~
Which of the following factors are essential to ignite a fire?
A. All of these
B. Fuel
C. Air (oxygen)
D. Heat
Answer:
All of these
Explanation:
Any fire needs three things to burn.
Fuel to keep burning.Oxygen to burnHeat until calorie value of substanceSo option A is correct
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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.
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 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.
A person with a recessive allele for colour blind may not be colur blind explain
Answer:
color blindness is inherited as a recessive trait on the X chromosome. This is known in genetics as X-linked recessive inheritance. As a result, the condition tends to affect males more often than females
Explanation:
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:
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.
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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!)
Question 8: How would you describe the effect of different magnitudes of the same factor on the number of
individuals within a population? Use evidence from the graph and table (average values) to support your
answer.
THIS IS EDGE 22 please helppp
Answer:
I don't understand thequestion
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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In the process of ————. DNA is used as a template for making another type of Nucleic acid?
Answer:
transcription, RNA
Explanation:
Should we start doing genetic testing to determine if someone is a good candidate to be a firefighter, or police officer? Why or why not?
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
What is a day to day example of something that uses infrared light?
Answer:
Remote controllers or night vision security cameras
Explanation:
Hope this helps
What part of the plant traps the energy in the sunlight as the sunlight strikes the leaves? stem roots chlorophyll stomata HURRY I WILL GIVE BRAINLEIST
Answer:
Chlorophyll
Explanation:
stomata are used for water regulation
roots absorb nutrients and water
stems provide structure
Answer:Chlorophyll
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 :)
Read the description of interphase at the bottom of the gizmo. What happens to the cell at the beginning of interphase?
Answer:
During the G1 phase, cells synthesize and grow mRNA and proteins for DNA synthesis.
Explanation:
Interphase is the resting phase of cell cycle. In this phase cell grows in size, accumulate nutrients and duplicate its genome. It also take part in mRNA and protein synthesis.
What are steps involved in cell cycle?Cell cycle is the series of events in which cell grows and duplicate to form daughter cells.
It has two phases:
Interphase: in this phase cell synthesize, grow, produce mRNA and protein and replicate cell's DNA. It is divided into: G1, S and G2 phase.M-phase: in this phase actual cell division takes place.Thus, in the beginning of interphase, cells prepare for division, accumulate nutrients and duplicate their genome.
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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:
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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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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What percentage codes for proteins, make up our bodies
Answer:
Only 1%
Explanation:
Answer:
If you sort through the three billion letters that make up the human genome, you find some surprising things. Only about 1% of the three billion letters directly codes for proteins. Hope this helps!
Explanation:
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
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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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.
The process of making changes in the dna code of a living organism is called.