Gametes are produced by the process of
a. mitosis.
b. meiosis.
c. crossing-over.
d. replication.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .

Why should organisms reproduce more offspring than will survive? select all that apply.