Why does embryology suggest an evolutionary relationship? Explain how these embryos can be used as evidence of a common.
Answer:
In the examination of the embryological stages of various organisms, it appears to be very similar in their structure, for instance, all vertebrate embryos have gill pouch and that evolved in gills in fish and head and neck in others.
The tail of the vertebrates is also an example that is present during the embryological stage but later regressed in human and other have them. On this basis, it can be stated that embryology suggests an evolutionary relationship.
All stars evolve the same up through the red giant phase. What determines the life cycle path a star will take from there?
a
The star's mass
b
The star's luminosity
c
The star's composition
d
The star's temperature
The allele for freckles, F, is dominant among humans. If a woman with freckles (FF) and a man without freckles (ff) have children, what are the possible genotypes of the children?
Answer:
Ff
Explanation:
F - freckles
f - no freckles
FF x ff
F F
f Ff Ff
f Ff Ff
100% with the dominant allele so 100% chance the children will have freckles
---> the possible genotypes are only Ff
Answer:
Ff
Explanation:
100% of the children will have freckles and will have the genotype Ff. If you draw out the punnett square, you will see that an F and an f will be in each box. If this is still confusing, I recommend looking up a video of how to use a punnett square, it will make sense. :)
Which causes genetic variations and can result in different alleles?
predation rate
random mutations
competition
environmental changes
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Definitions:
Predation rate
is the annual mortality within. a population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator strategies. Predation risk, on the.
random mutations:
What is commonly called "random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.
competition:
the activity or condition of competing.
environmental changes:
Examples of these global environmental changes include climate change, freshwater shortages, loss of biodiversity (with consequent changes to functioning of ecosystems), and exhaustion of fisheries.
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis.
Predation rate is the annual mortality within. A population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator strategies. Predation risk, on the.
"Random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.
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What is true of the population shown in this graph?
A) The population has increased until it reached its carrying capacity.
B) The population is not changing much over time.
C) The population is growing unchecked.
D) There are many factors at work to control the population.
Ω Entity001 And Project Ω
Answer:
C.
Explanation:
It is C. because there are no numbers for you to see how many people there are and since the line in the graph went up super high it means the population is growing unchecked since there arent any numbers on the graph to prove it was checked.
Which of the following hypotheses is incorrect? AO I UV light can damage the eyes, then UV light may be the cause of blindness. B. The length of the string has an effect on the time of the oscillation. As the length shortens, the time taken for one oscillation also decreases. c. If the diffusion rate through a membrane is related to the molecular size, then smaller the molecule, the faster it will pass through a membrane. D. Soft drinks are acidic because of the presence of citric acid and phosphoric acid.
Answer:
it might be C i did a test like this before so im pretty sure but not all the way
Explanation:
A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. what medical condition connected to blood flow is most likely to affect this patient in the future?
Answer:
A myocardial infarction (heart attack)
Explanation:
how to solve Amino Acid Sequence?
Answer:
I hope this helps it's a picture of how to solve to get amino acids.
Explanation:
Which shows the correct order of forces, from weakest to strongest?
A. weak, strong, gravitational, electromagnetic
B. electromagnetic, weak, strong, gravitational
C. gravitational, weak, electromagnetic, strong
D. weak, electromagnetic, gravitational, strong
Answer:
C. gravitational, weak, electromagnetic, strong
Explanation:
HELP NEEDED ASAP!!!!
Answer:
I think I found your answers! ;)
Let me know if its wrong and I can fix it, but here you go!
Explanation:
What is the probability of producing a tall pea plant from a genetic cross between two heterozygous tall pea plants (tall is dominant)?
25%
50%
75%
100%
Answer:
100%
Explanation:
There are 4 individual outcomes. (s = short)
TT
TT
Ts
Ts
So its 100% (The dominant is always expressed unless the genotype is ss)
A cell undergoing meiosis has a defect and cannot do crossing over. The cell
completes the rest of meiosis successfully and produces four sperm cells.
Which of the following describes the correct outcome of this defect?
Select one:
The sperm cells will all be the same.
The sperm cells will be identical to the parent cell.
The sperm cells will have reduced genetic variety but will still be different.
The sperm cells will form two pairs of identical cells. Cells in a pair will be different from
the other pair
Answer:
Option #3
Explanation:
That is the basic terminology that us used during meiosis.
The statement that best describes the correct outcome of this defect is the sperm cells will all be the same. Thus, the correct option for this question is A.
What is Meiosis?Meiosis may be defined as a type of cell division that significantly produces four daughter cells that are genetically non-identical to the parental cells. These daughter cells are haploid in nature. Germ cells or sex cells are generally produced by this mechanism.
The cells that are formed as a result of meiosis have half the amount of chromosomes as compared to the parental cell. This is because when the germ cells of two different origins fuse together, they will form complete chromosomes.
The egg cells or sperm cells that are produced by this process of cell division will all be the same with respect to the number of chromosomes and physiology along with function.
Therefore, the sperm cells will all be the same is a statement that best describes the correct outcome of this defect. Thus, the correct option for this question is A.
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Males will have chromosomes ____, while females will have ____.
On a scale of one to nature valley granola bar, how much is your life falling apart rn?
Answer:
Nature valley granola bar lol
Explanation:
Answer:
Nature Valley Granola bar.
Explanation:
I can't see my future wife (whom I had gotten engaged to before the pandemic started) because she became infected with the corona virus. Not to mention several of my friends that I had known since High School have died. So life really isn't going well right now.
What are feminine products and why are they used?
Answer:
feminie producst which im pretty sure your asking about is tampons and pads. Tampons and pads are used to soak up your period blood, which happens once a month usually for 2-7 days. A period is a release of blood from a girl's uterus
what are the pros and cons of meiosis?
Answer:
Pro: sexual reproductions', organism carry off offspring's DNA. asexual reproduction lack genetic differentionn
The sexual reproduction is better when having children that have different DNA!
organisms survive better with diverse offspring
Con: The sexual reproduction is hard to get
It requires a lot of work just to create 1-2 organisms
It lacks speed
Explanation:
What is one way that fish interact with a coral reef?
They build nests in the coral.
Fish hide within the coral.
Fish help build larger coral reefs.
They avoid coral reefs.
Answer:
Fish hide within the coral.
Explanation:
Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white. Anna darkens the room and shines a beam of light that includes all the wavelengths of visible light onto the wall. In this light, what's the wall color that Anna sees?
Answer:
White
Explanation:
The light is measured by its wavelength, generally in nanometers (nm), and visible light has a wavelength spectrum of 400 to 700 nm. Sunlight can be divided into three components: 1-visible light, 2-ultraviolet (UV) light, and 3-infrared radiation. Since white light is visible light (this color contains all the colors of the rainbow) and sunlight includes the visible light of all wavelengths, the object will look white under this light spectrum.
Answer:
white
Explanation:
what's the difference between the structure of a nucleic acid and the structure of a protein?
The conservation of charge principle states that _________. Select all that apply.
Answer:
Where is the picture? .. If no picture I cant answer
chanterelle mushroom have a cell wall
Pls pls help help I need
Answer:
I HOPE THIS HELPS PLS BRAINLY PLSThe genotype of individual 2 could be
Answer:
ee
Explanation:
indicated by black color.
The corpse flower produces the smell of rotting flesh to attract pollinators on the floor of the rainforest. This adaptation is an example of
Answer:
Well, defense and support to the ecosystem.
One choice contains ONLY biotic factors that might be found in a home aquarium's environment. That is
A)
fish, snail, and plants.
B)
fish, snail, and gravel.
water, gravel, and the glass wall of the aquarium.
D)
fish, dissolved oxygen, and bacteria living in the water.
Answer:
A) fish, snail, and plants
Explanation:
In a high pressure system, cool air ____________ and warms, and the weather is ____________ and ____________.
Answer:
Sinks; clear: dry.
Explanation:
Weather can be defined as the atmospheric conditions of a particular area over a short period of time.
The elements of weather include precipitation, wind, temperature, atmospheric pressure, relative humidity, cloud, and wind speed.
The air pressure gradient which typically is the difference in air pressure between two systems affects the movement of atmospheric air. Consequently, this movement has a significant level of impact on the type of weather that is formed between low-pressure and high-pressure systems.
In a high pressure system, cool air sinks and warms, and the weather is clear and dry. Similarly, in low-pressure systems, warm air usually rises and then cools, thus, leading to the formation of clouds and precipitations.
If a cell lost the ability to make its own proteins what organelle is likely not working properly?
A. Ribosomes
b. Cell membrane
C. Chloroplast
D. Mitochondria
Answer:
A: Ribosomes -
They are composed of special proteins and nucleic acids.
Explanation:
B is incorrect, because the cell membrane controls what goes in and out of the cell.
C is incorrect, because chloroplast helps with photosynthesis in plant cells
D is incorrect. because mitochondria is the power house of ther cell. It produces the energy for the cell.
starch is a polysaccharide that contains...
A. one molecule of glucose
B. two molecules of glucose
C. many molecules of glucose
D. none of the above
HELP
Answer:
many molecules of glucose
A major cause of genetic variation within a species is the result of...
Answer: mutation
Explanation:
Which of the following is NOT a feature of asexual reproduction?
1.Creates an exact genetic copy called a clone
2.Creates offspring that are fit for a stable environment
3.Is the primary mode of reproduction for microorganisms
4.Creates genetic variation that aides in evolution
Answer:
4
Explanation:
There is no variation