Vertebrate Adaptions For Terrestrial Life
Beginning of paper
AP-Biology Essay on vertebrate structural adaptations for terrestrial life.
(From an actual past AP-BIOLOGY test)
The problems of survival of animals on land are very different from
those of survival of animals in aquatic environment. Describe four problems
associated with animal survival in terre ....
Middle of paper
.... approach to
the problem of gas exchange, as water is not present in all of the terrestrial
environment. Terrestrial vertebrates have developed lungs to solve this problem.
Air enters through the nasal passages, or the mouth, passes through the trachea,
then branches off at the two bronchi, and goes through many branching passages
called bronchioles, which end in alveoli. Alveoli are sack-like structures where
the circulatory system meets the respiratory system.
Since terrestrial vertebrates d ....
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Word count: 624
Page count: 3 (approximately 250 words per page)
