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RSB [31]
3 years ago
13

I need helpppp ASAPPP

Biology
1 answer:
Margaret [11]3 years ago
6 0

I think the answer is "It's tightly packed cells allow for protection against harmful substances."

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Explain (1) what type of variation is always required for natural selection and (2) where this variation comes from?
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When we talk about evolution we come across the process of natural selection. Genetic variation is always required for the natural selection. A change or variation in the genes may help the individuals in a population to better adapt to the environment. Such changes may be brought by mutations or random mating in the population. Such variations help in the survival of the population by allowing them to adapt to changing environmental conditions.

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The atmosphere is divided vertically into four layers based on...
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6.   Which one of the following statements does not accurately describe vibrations?
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<span>Which one of the following statements does not accurately describe vibrations?
</span>A: Forced vibrations, such as those between a tuning fork and a large cabinet surface, result in a much lower sound than was produced by the original vibrating body.
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Largest- Oak trees Smallest- Toads
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The pea aphid, a type of insect, contains light-capturing pigments in its exoskeleton. Scientists hypothesize the pea aphids gai
grigory [225]

The pea aphid isn't a true autotroph because it is unable to use the energy from sunlight.

<h3>What is a true autotroph?</h3>

A true autotroph is an organism that produces biomass by a chemical process called photosynthesis.

This type of autotroph generates biomass by means of photosynthetic cycles of production.

In conclusion, the pea aphid isn't a true autotroph because it is unable to use the energy from sunlight.

Learn more about true autotrophs here:

brainly.com/question/13185466

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