QUESTION 1 2 points Save Answer Which of the following is the closest, extant re

Question

QUESTION 1 2 points Save Answer Which of the following is the closest, extant relative of modern birds? Crocodile Bat Lizard Pterosaur Frog QUESTION 2 2 pointsSave Answer Which of the following statements about the early whale lineage is true? The earliest whale lineages were all herbivores Fossils of early whale relatives are recognizable because of a distinct shape in the inner ear bones Whales lost their hind legs before they became aquatic Early whale lineages were filter feeders like today's baleen whales QUESTION 3 2 points Save Answer Why is a bipedal ancestor an important concept when trying to understand the evolution of birds? OIt caused a corollary increase in the size of the brain It increased the metabolic rate and led to endothermy It freed up the front limbs so that they could potentially take on new functions such as flight. It increased the speed at which these predators could hunt down prey

Explanation / Answer

1) Birds are characterised by the presence of feathers, toothless beaks, high metabolic rate and four chambered heart. The modern birds are considered to be the closest living relation of erstwhile crocodilians. Therefore, the answer for this question is option 1 (crocodile).

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