Water moves from regions of high water potential to regions of low water potential.

The smallest particles occurring in soil are referred to as

Members of the California sheephead fish species begin their life as females and then become males. This is referred to as

In the presence of predators, some tadpoles grow larger and more colorful tails to avoid lethal strikes to the head. This ability to respond to the environment via morphological traits is known as

________ defines the size of a population, the number of individuals in it.

Incoming radiation exceeds outgoing radiation at or near

The alternate forms of a gene are called

Using examples, explain why some species provide parental care and others do not, and why some species require more parental care than others.

Competition among individuals of the same species is referred to as ________ competition.

The absorption and re-radiation of longwave radiation by gases in the atmosphere is called the ________.