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kakasveta [241]
3 years ago
11

What is the process by which animals change over time

Biology
1 answer:
Naily [24]3 years ago
4 0

Answer:

evolution? I think?

Explanation:

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A teacher assigns the following experiment to a class. Draw an outline of a bird's feather, and color one half of the outline wi
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The correct answer is option (D) Lipid molecules are nonpolar because they repel water molecules, which are polar.

Lipids are organic compounds made up of fatty acids and glycerol. A glycerol is a organic molecule with three hydroxyl groups and a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.

Lipids are hydrophobic, nonpolar molecules with no charge on their ends. Waxes are long chain nonpolar lipids. The water repelling property of the waxes prevent the water sticking to it and appear as water beads on its surface. The hydrophobic hydrocarbon tail of the fatty acids are hydrophobic in nature making them repel water. The presence of wax on the surface of the plants and animals protects them from dehydration.

Thus, the nonpolar property of lipids make it insoluble in the polar solvents like water as there is no interaction or sharing of electrons between them.

7 0
3 years ago
Which of the following is TRUE about sexual reproduction? Please choose the correct answer from the following choices, and then
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Answer:

The correct answer is A. Sexual reproduction produces a greater variation in offspring.

Explanation:

  • B is wrong because in sexual reproduction there are two organisms involved who combine their DNA, therefore resulting in non-identical offsprings.
  • C is wrong because sexual reproduction requires the two organisms involved to exchange DNA's whereas asexual reproduction involves only one organism which only copies it's own DNA for reproduction.
  • D is wrong because there are no risks as genetic defects and no need to seek a mate or it is easier than sexual reproduction which results in lower risks for the parents in asexual reproduction.
  • E is wrong because asexual production is a more efficient procedure and results in a faster growing population because there is no need to search a mate.
  • The answer is A because in sexual reproduction, two different DNA's from both parents get combined resulting in more variation in offspring. In asexual reproduction, there is only one set of DNA which does not allow the gene's to mix, causing a less diverse offspring.
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Two hybrid striped zebrafish mate and produce offspring. Stripes is dominant over no-stripes. What is the genotype ratio and phe
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Answer:

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Explanation:

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3 years ago
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<h3><u>The Food webs are preferred over food chains for representing the flow of energy in an ecosystem for the following reasons: </u></h3>
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  • Food web represents the real life better than the food chains do.
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