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Author Question: What were the factors that made it difficult for animals to adapt to land? What will be an ideal ... (Read 117 times)

sammy

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on: Jul 15, 2018
What were the factors that made it difficult for animals to adapt to land? What will be an ideal response?

Question 2

How do you think the evolution of jawed fishes and other predatory creatures affected the marine
  ecosystem? What will be an ideal response?



rnehls

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Reply #1 on: Jul 15, 2018
Answer to Question 1

On land, animals had to worry about reproduction, desiccation, gravity, and the extraction of oxygen
from the atmosphere.



Answer to Question 2

The development of predators had a major impact because organisms that had previously not needed
defense mechanisms either developed defense systems or suffered great population losses.



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