Answer:
prophase I
Explanation:
This is important because it increases genetic variation.
hope this helps
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Which trait is least likely to be modified by environmental influences? life span height blood type weight
Answer:
It's blood type
Explanation:
im in k12 and had a quiz about it.
If a cell becomes freely permeable to sodium ions (na ) and is not regulated, what will be the resulting membrane potential?
Since their are more sodium ions outside the cell at test, if a cell becomes freely permeable to sodium ions and is not regulated, the membrane potential will be positive.
What is membrane potential?The membrane potential is the potential difference across a neuronal membrane due to the difference in the concentration gradient of oppositely charged ions.
At rest, the inside of the membrane is negative while outside is positive due to more sodium ions being outside the cell.
Therefore, if a cell becomes freely permeable to sodium ions and is not regulated, the membrane potential will be positive.
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Which best explains why it is difficult to classify protists?
Protists are difficult to characterize because of the great diversity of the kingdom. These organisms vary in body form, nutrition, and reproduction. They may be unicellular, colonial, or multicellular.
Why is it difficult to explain one certain way a protist reproduces?It is hard to demonstrate one certain way a protist reproduces :
Some protists use agamic reproduction at one stage in their life and then use gamic reproduction at another stage in their life.
Thus, Protists are difficult to characterize because of the great diversity of the kingdom.
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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 is the renewability of nuclear power?
It is a nonrenewable energy source.
It can use the same fuel cells repeatedly.
It is an unlimited, clean energy source.
It can be replenished, but not by fusion.
Answer: A
Explanation:
Answer: It can be replenished, but not by fusion.
Explanation:
Which of the following is an example of a phenotype?
Answer:
A phenotype is the physical definition of you, what people can see. For instance, when you take a picture, people can see your phenotype through your eye.
How does a comparison of bone structures of two animal provide evidence of an evolutionary relationship
Answer: Comparative Anatomy
Both provide evidence for evolution. Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.
Explanation: hope it helps
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Over the course of evolution, the bones of the animals undergo a gradual change in shape as well as in size. But still, two closely related animals have an identical overall layout of the bone.
What do you mean by Evolution?Evolution may be defined as a gradual process that involves changes or modifications in the members of the same or different species over a long period of time.
The bones of descent common ancestors reveal the evolutionary relationships among the animals. In relationship involves homologous and analogous structures.
The homologous structure reveals the structural similarity between the animals, while the analogous structures reveal the functional similarity.
Therefore, it is well described above.
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Protozoa are often found in what kind of environment?.
Earthquakes also produce transverse waves that move more slowly than the p-waves. These
waves are called secondary waves, or s-waves. If the wavelength of a s-wave is 2.3 x104 m, and
its speed is 4.5 km/s, what is the frequency?
The frequency of the wave is 0.196 Hz
Speed of a waveThe speed of a wave is given by v = fλ where
f = frequency and λ = wavelengthFrequency of the waveMaking f subject of the formula, we have
f = v/λ
Since
v = speed of wave = 4.5 km/s = 4.5 × 10³ m/s and λ = wavelength = 2.3 × 10⁴ m.Substituting the values pof the variables into the equation, we have
f = v/λ
f = 4.5 × 10³ m/s ÷ 2.3 × 10⁴ m.
f = 1.957 × 10⁻¹ Hz
f = 0.1957 Hz
f ≅ 0.196 Hz
So, the frequency of the wave is 0.196 Hz
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Which of the following statements about energy and trophic levels is not true? a. the amount of available energy decreases at each higher trophic level. b. the energy conversion efficiency decreases at higher trophic levels. c. the net production of energy is higher at lower trophic levels. d. none of the above please select the best answer from the choices provided a b c d
All statements are true about the energy and trophic levels. So, the correct option is D. None of the above.
What are trophic levels?Trophic levels are the levels of energy transfer from lower to higher levels.
There are five levels of trophic level.
The lower level contains autotrophs or producers. And the uppermost level contains big animals or tertiary consumers.
The energy level decreases on going to the higher levels because some amount of energy always lapses as entropy.
Thus, the correct option is D.
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Answer: D
Explanation: fr fr
Scientists have studied the return of plant life on Mount St. Helens ever since the volcano erupted in
1980. Wildflowers began colonizing the area, followed by shrubs and small trees. Scientists predict
that it will likely take hundreds of years before the area returns to a forest dominated by fir and
hemlock trees. These changes are an example of:
a. humans degrading an ecosystem by removing wildflowers
b. the loss of genetic variation in a plant species
C. the growth of a forest through ecological succession
d. the biological evolution of wildflowers, shrubs, and trees
Answer:
C.
The ecosystem there will definitely go through ecological succession by which the structure of the flora there will evolve over time into forests.
6. Multiple genes interact to determine the phenotype.
7. Two alleles are dominant, resulting in offspring that show both phenotypes.
8. One gene has several different forms, resulting in more than two phenotypes.
9. Two alleles are neither completely dominant nor completely recessive, resulting in a phenotype that is a combination of the two
Answer:
6.polygenic traits
7.codominance
8.multiple alleles
9.incomplete dominance
Explanation:
because i did it in savvas and i got it right.
The phenotype of an organism is influenced by the interactions of several genes. This implies that the organism's physical traits are governed by the interplay of several genes that it received from its parents.
When two alleles, or gene forms, are dominant, the dominant allele determines the phenotype of the progeny. This means that even if the other gene is recessive, the progeny will exhibit both traits if one of the alleles is dominant.
Sometimes a gene can take on several forms, producing more than two phenotypes. It is referred to as polygenic inheritance when more than one allele of a single gene affects the phenotype. Other times, two alleles are neither fully dominant nor fully recessive.
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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:
Is this animal a carnivore or an herbivore? How do its teeth help it obtain food?
Answer:
This animal is a herbivore. The front teeth help it tear off vegetation, and the back teeth help it chew the plants.
Explanation:
A herbivore's back teeth are adapted to help it chew its high fiber plant diet. The front teeth, however, help it actually put the food in its mouth. The picture below shows a typical goat skull (herbivore), and as you can see, it is similar to the one in your problem. So, that skull is one from a herbivore.
Physical stressors to an ecosystem that are removed or corrected first in restoration projects typically include ______.
Answer:
water flow, vehicle traffic and pollutants
Explanation:
If a srna is bound to the ribosome binding sequence of a mrna coding for an enzyme in a bacteria, what effect will this have on the amount of enzyme in this cell?.
If an sRNA is bound to the ribosome binding sequence of an mRNA coding for an enzyme in a bacteria, it will reduce the amount of enzyme.
What is an sRNA?A small RNA (sRNA) is a short sequence that binds to target mRNAs by base complementarity and thus reduces gene expression.
These sequences (sRNAs) can efficiently block prokaryotic translation in order to reduce the amount of protein.
The sRNAs have fundamental regulatory roles both in bacterial translation and protein production.
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helloooooooooooooooooooooooooooooooooooo
Answer:
hi
Explanation:
Please help me. Fill in the blank with the answer
Answer:
Ribose sugar
Explanation:
Ribose sugar
which of the strands below is NOT a strand of rna?
[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]
OptionB. ATGCTTGCAGTCCATGAC✓
It is the only strand that includes "T" or thymine which is only found in DNA .[tex]\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}[/tex]
[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
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.
Plants help the environment by supplying ________.
Answer:
oxygen
Explanation:
hope this helps
have a good day
Which statement describes one way that roots and leaves interact to transport water through plants?
The flow of oxygen out of the stomata of leaves
stimulates the roots to absorb more water for
photosynthesis.
Wilting leaves send chemical signals to the roots,
causing them to take in water at a faster rate.
The evaporation of water through the stomata of
leaves creates a pull that draws water in through the
roots.
Changes in sugar concentration in the phloem of
leaves causes water to move into the roots by
osmosis.
The statement that describes one way that roots and leaves interact to transport water through plants is: evaporation of water through the stomata of leaves creates a pull that draws water in through the roots.
What is transpiration?Transpiration is the process whereby water is lost from the surface of the leaf into the atmosphere.
A process called transpiration pull facilitates the absorption of water by the root hairs of the plant.
The water then moves via the conducting vessel called xylem to other parts of the plant.
Therefore, the statement that describes one way that roots and leaves interact to transport water through plants is: evaporation of water through the stomata of leaves creates a pull that draws water in through the roots.
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What is the maximum number of seeds of any one type that the seed dispensary can hold?.
Answer:
20 seeds of each plant can be held at a time.
Explanation:
:)
I need help this is for 20 points.
Answer:
Below
Explanation:
Square One:
Top Left: TT
Top Right: Tt
Bottom Left: TT
Bottom Right: Tt
Two:
TL: Tt
TR: Tt
BL: tt
BR: tt
Three:
TL: BB
TR: Rr
BL: Rr
BR: rr
Four:
TL:RR
TR: RR
BL: Rr
BR: Rr
2. First square: top is T then t, the side is t then T
Second: top is T then t, side is T then t
Third: top is R then r, side is r then r
Fourth: All R
which is the second highest in the food chain acorn squirrel crow
Answer:
Squireel
Explanation:
Which plant structures are common to all angiosperms?
Answer:
All angiosperms produce flowers, reproductive structures that are formed from four whorls of modified leaves. Most flowers have showy petals to attract pollinators, bribing insects and other animals with nectar, to get them to carry the male gametophyte through the air to another flower.
Answer:
spores,flowers,cones,endoskeleton
Explanation:
Hey Adam are we good with you and I hope your?
Answer: yo whatever you’re going through, just don’t apologize on brainly
Explanation:
The term used for all floating and drifting organisms in the sea is:
Answer: Plankton
Explanation:
Plankto ( drufter or wanderer ) is carried by tides and currents
The mutual interdependence that characterizes oligopoly arises because.
We can confirm that the mutual interdependence that characterizes oligopoly arises because the output for a given market is being generated by a small group of companies.
What is oligopoly?Oligopoly is when the market for a given product is controlled by only a few of the companies that create said product. This situation can have benefits as well as drawbacks. A benefit would be increased product variation, providing more choices for consumers, while a drawback would be a lack of competition to keep prices low.
Therefore, we can confirm that the mutual interdependence that characterizes oligopoly arises because the output for a given market is being generated by a small group of companies.
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During light detection in a photoreceptor, light directly causes what molecular change?.
During light detection, the light causes a retinal change from cis to trans conformation in regards to the opsin protein.
What is a photoreceptor?Photoreceptors are the name we use to refer to a specialized form of neuron cells. These cells are crucial in our ability to see, they allow vision. Their job is to receive and interpret light as information. They do this using a protein named opsin, as well as specific conformations of the retina, such as cis or trans, which change with the light.
Therefore, we can confirm that during light detection, the light causes a retinal change from cis to trans conformation in regards to the opsin protein.
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