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castortr0y [4]
3 years ago
12

At what tropic level do the killer and whales primarily feed

Biology
2 answers:
lions [1.4K]3 years ago
7 0

Answer:

third and fourth trophic levels

Explanation:

tangare [24]3 years ago
6 0
Third or fourth tropic levels I hope this helped you
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Darwin developed his theory of natural selection only from his work on the Galapagos Islands.
brilliants [131]
It is false I think or true but I am sure it is not true
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Mitosis in plants occurs in localized areas know as meristems<br><br><br> A)True<br> B)False
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I think the answer is
true

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Explain how the structure of an enzyme makes that enzyme specific
kotykmax [81]
Hello. this is very simple. i know it and im in middle school. dont highschoolers know that you can just ask google and get a verified answer in just a few seconds?

sighs, well i guess older kids dont get technology as much as we do.

no offense, but seriously if you pay more attention in class you might not be asking this silly question right now.




Molecule which enzyme<span> acts on = the substrate. 5. Substrate molecule is held within the active site by bonds that temporarily form between certain amino acids of the active site and groups on the substrate molecule. ... This folds in a particular way = each </span>enzyme<span> has a </span>specific<span> tertiary </span>structure<span>.</span>

6 0
3 years ago
In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher
dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.

8 0
2 years ago
Natural selection is an evolutionary mechanism by which _______.
torisob [31]

Answer: The correct answer for the fill in the blank is B) Advantageous traits become more common in a population.

Theory of natural selection was given by Darwin. This is one of the mechanisms of evolution.

According to this theory, organisms that are better adapted to their environmental conditions survive and increase their population by reproduction. So they pass the advantageous trait to the next generation. In other words, it reflects the survival of the fittest.

Due to this, the advantageous trait becomes more common in the population.

Thus, the correct option is B)

8 0
3 years ago
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