Which is an example of a behavioral adaptation?

a.
a beaver marks it territory with its scent.

b.
an egret has long legs for wading in the mud.

c.
a hummingbird has a long bill to reach the flower's nectar.

d.
an arctic fox has thick fur on its feet for warmth.

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

What do genes contain the code for?

All of the following statements about enzymes are correct except: proteolytic enzymes are also known as proteases. pectin methyl esterase causes browning of cut fruit. cloud loss in orange juice is due to enzyme activity. proteolytic enzymes in fish cause tissue softening during storage.