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dem82 [27]
3 years ago
9

A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these fea

tures are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?
Biology
1 answer:
Anastaziya [24]3 years ago
8 0

Complete question: A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these features are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?

A) four-chambered heart

B) singing for territory

C) eggs and nests

D) singing to attract mates

Answer: (c) eggs and nests

Explanation:

A hypothesis based on phylogenetic tree shows that birds and crocodiles have ancestral connection. Fossil evidence shows that their common ancestor exhibit oviparity as a means of reproduction (i.e. laying of eggs and embryo develops within the egg), and also housed their eggs in the nest for protection against predators and other important reasons.

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