Newly hatched birds that lack down and are nest-bound,unable to feed on their own,as with baby wrens or robins,are
A)altricial.
B)derived.
C)carinate.
D)precocial.
E)ratites.

Question

Quizplus · Accepted Answer

Altricial means that the offspring are born helpless and require extensive care and feeding from their parents. This describes newly hatched birds that lack down and are unable to feed themselves, as in the case of baby wrens or robins. Precocial (choice D) describes offspring that are born relatively self-sufficient and able to move and feed shortly after hatching, which is not the case for nest-bound birds. Derived (choice B), carinate (choice C), and ratites (choice E) are not applicable terms for describing newly hatched birds.

Newly Hatched Birds That Lack Down and Are Nest-Bound,unable to Feed