______________ is a process whereby dead bodies, shed parts of bodies, or feces gradually disintegrate.

What term would be used to describe the process whereby nitrogen is converted into molecules that plants can use?

____________ occurs when bacteria convert ammonium to nitrate.

What is the definition of a metapopulation? Please give me an example of a population that would fit this description.

Which molecular marker is a series of nucleotide bases repeated numerous times and is found in noncoding regions of DNA?

What is one way to define a harsh environment?

Which of the following is an example of a trophic cascade?

The mass movement of elk across North America is an example of ________?

Species richness can be influenced by climatic factors that vary spatially. One hypothesis explains how environmental temperature may affect a community of organisms. Which hypothesis is this?

Multiple regions of DNA that are used as markers would be referred to as what?