On Galapagos islands with sparse vegetation, how were
the tortoises adapted to this
environment?
A. They ate primarily soil.
B. They had shells that did not allow their
necks to move much at all.
C. They swam in the ocean to find food.
D. They had shells that allowed their
necks to extend.

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.