1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
3 years ago
10

On what characteristic of an organism does natural selection exert pressure?

Biology
2 answers:
Pie3 years ago
8 0

Answer: option D.

Phenotype

Explanation:

Theory of natural selection shows that different organism survive, adapt and reproduce in their environment due to their different phenotypic variation. The phenotypic variation exist among individual organisms and it is heritable which is transfer from one generation to another.

Phenotype are traits or physical characteristics or observable characteristics of organism e.g organisms appearance, behavior e.t.c.

STALIN [3.7K]3 years ago
7 0

Answer:

d. phenotype

Explanation:

<em>Natural selection exert pressure on the physical characteristics of organisms, that is, the phenotype.</em>

Natural selection refers to the variation in the survival and reproduction of individuals within a population based on how adaptable they are to the environment in which they live.

<u>The forces of natural selection act on the physical characteristics of individuals, that is how physically fit or unfit individuals are. Individuals that posses physical characters that makes them to be better adapted to the environment survives and reproduce better than their counterparts that are less adapted. Natural selection thus selects for the physical characters that make the individuals to be better adapted.</u>

The correct option is d.

You might be interested in
Compare the external structure of the mammalian skin with that of the epidermis of a leaf.
antoniya [11.8K]

Answer:

<em><u>Mammalary skin</u></em>

Skin is layered

Have hairs on it.

Acts as protectector

not so hard as epidermal

<em><u>Epithelial</u></em>

Can be layered

Dont have hair

Acts as protective layer also supports plants

Its hard

6 0
3 years ago
In cabbage butterflies, white wings are dominant to yellow wings.
FromTheMoon [43]

Answer:

- Genotypes: 50% (Ww) and 50% (ww)

- Phenotypes: 50% will have white wings, and the other 50% will have yellow wings.

- Percent chance: 50% (heterozygous - Ww - yellow) and 50% (homozygous recessive - ww - white)

Explanation:

To answer this question, we make a Punnett square which looks like this:

You cross a heterozygous butterfly (Ww) and a homozygous recessive butterfly (ww), and it gives you:

Ww ww

Ww ww

As you can see from this Punnett square, 2 out of 4 have Ww, which makes it heterozygous and since they have the dominant W trait on them, they result to have white wings. The other 2 have yellow wings, since they have only w on them (recessive trait). Calculate percentages, you get 50% Ww and 50% ww.

7 0
3 years ago
Are numbers 4-8 right
Nina [5.8K]

Answer:

Yes, except for one thing.

Explanation:

The numbers are correct, however, the SA/volume ratio does not have units because the cm² cancels out.

8 0
3 years ago
Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophy
zavuch27 [327]

Answer:

Earliest- gametophyte dominance, sporophyte dependence

Middle- sporophyte dominance, gametophyte independence

Recent-  sporophyte dominance, gametophyte dependence

Explanation:

The life cycle of plant alternates between the two phases: the haploid gametophyte which produces gametes and the diploid sporophyte which produces spores.  The evolution of land plants shows how these are dependent on each other in terms of the requirement of nutrition.

In bryophytes, the gametophyte is the dominant phase on which the sporophyte depended. Later in pteridophytes, the sporophyte became dominant which is present in the later evolved groups namely the gymnosperms and the angiosperms. The gametophyte was independent on the sporophyte but in angiosperms and gymnosperms, it is dependent.

3 0
3 years ago
Describe the three types of predation and give an example of each.
uranmaximum [27]
<span>True predation is when a predator kills and eats its prey. Some predators of this type, such as jaguars, kill large prey. They tear it apart and chew it before eating it. Others, like bottlenose dolphins or snakes, may eat their prey whole. In some cases, the prey dies in the mouth or the digestive system of the predator. Baleen whales, for example, eat millions of plankton at once. The prey is digested afterward. True predators may hunt actively for prey, or they may sit and wait for prey to get within striking distance. In grazing , the predator eats part of the prey but does not usually kill it. You may have seen cows grazing on grass. The grass they eat grows back, so there is no real effect on the population. In the ocean, kelp (a type of seaweed) can regrow after being eaten by fish.</span>
3 0
3 years ago
Other questions:
  • Dhara was recently in a car accident. her doctor told her that she has frontal lobe damage. how will this damage affect dhara? s
    6·1 answer
  • What can humans do to make the renewable forest resources last longer
    8·1 answer
  • Which condition can cause a client's partial pressure of end-tidal carbon dioxide (petco 2) to be 50 mmhg?
    7·2 answers
  • How does a wave affect energy? How does a wave affect matter
    6·2 answers
  • A 63-year-old woman has been diagnosed with polycythemia vera (pv) after undergoing a series of diagnostic tests. when the woman
    7·1 answer
  • What is the maximum magnification of most classroom compound light microscopes?
    11·2 answers
  • The period during which a heart chamber is contracting is called
    14·1 answer
  • Humid tropical climate regions are located _____.
    12·2 answers
  • Which would be a better example of light energy to electrical energy? Solar panels or flashlights?
    7·2 answers
  • Which of the following are functions of proteins
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!