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marshall27 [118]
3 years ago
9

When Charles Darwin considered some of the unique structures found in modern animals, like the feathered wings of birds, he famo

usly proposed that modern animals must have evolved from earlier forms that lacked those structures. He also predictedA.that it would be impossible to find fossil evidence for this idea because the fossil record is so incomplete. B.that genetic evidence would show that all organisms share a common ancestor. C.that fossils would be found with structures that are intermediate between early and modern forms. D.that fossil evidence would instead show that all modern animals have always existed in their present form.
Biology
1 answer:
REY [17]3 years ago
7 0

<u>Answer:</u>

Charles Darwin’s study of evolution predicts that genetic evidence would show that all organisms share a common ancestor.

Option: (B)

<u>Explanation: </u>

  • Through his "theory of evolution", Darwin found that the species exist and new species form based on natural selection.
  • He studied the animals and birds in Galapagos island for his evolution theory.  

<u>The four key points of Darwin's Theory of Evolution:</u>

  • individuals of any species are not identical;  
  • genes are passed from one 'generation' to another;
  • more offspring are born than can survive;  
  • only the 'survivors of the competition' for the resources will reproduce.

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D.

Glucose is energy, which means it breaks down when energy is consumed. When a fox consumes it's pray, a seagull glides trough the air and a duck rests on a pond, not much glucose is consumed.

Energy is used when physical effort is necessary, and running from a predator, requires a lot of energy.

Hope it helped,

Happy homework/ study/ exam!

6 0
3 years ago
How do geologists know about the inside of the Earth?
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Which hypothesis helps to explain why all organisms share the same genetic code?
KonstantinChe [14]

Answer:

There are two possible answers: Deep-sea vents provided the energy needed for the first organic compounds to form OR self-replicating RNA molecules passed on genetic information.

Explanation:

The reason for the first answer is due to the hypothesis that indicates that life (organic molecules) arose from inorganic molecules synthesized from the amino acids in those energy vents. This is called the metabolism first hypothesis. The Miller-Urey Experiment provided evidence that organisms could rise from inorganic molecules (they simulated under the conditions you would see on early Earth). The second hypothesis is the RNA World hypothesis (second answer) which suggests that the formation of RNA that could replicate (possible due to mutation or evolution), led to life that could preserve its genetic integrity through replication (greater stability to the organism) and create lipid bi-layer membranes/other organelles. Some scientists support the Metabolism First Hypothesis, while others are skeptical (this goes for the RNA World Hypothesis as well). However, the RNA World Hypothesis is for more reasonable in the fact that its main point is the fact that RNA molecules were able to replicate and maintain genetic stability despite early Earth conditions. Although either hypothesis could explain why all organisms share the same genetic code, the RNA World Hypothesis better explains the universality of DNA/RNA of genes that we see today.

5 0
3 years ago
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Svet_ta [14]
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The auricle is what we see of the ear...the physical part of the ear. It can be called the pinna as well.


I hoped that this helped and good luck.
5 0
3 years ago
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