Exam 51: Animal Development

The function of the chorion is to

Identify two changes that occur at or shortly after birth that allow the neonate to live independently.

A primitive groove is the equivalent of a

In birds and reptiles, the allantois stores nitrogenous wastes.

List the fate of each of the three germ layers.

Most invertebrates have

Figure 51-2 Use the figure to answer the corresponding question(s). ​ ​ The developing embryo in the accompanying figure is representative of development in a(n)

Figure 51-2 Use the figure to answer the corresponding question(s). ​ ​ The developmental stage represented in the accompanying figure is a(n)

Describe the mechanisms that lead to multiple births.

The fertilization envelope forms when the plasma membranes of sperm and egg fuse.

The extraembryonic membrane closest to the embryo is the

Which of the following consists of a hollow ball of cells?

In most animals, the sperm and egg contribute an equal ____ to the zygote.