What occurs if the environment changes and a species is no longer able to survive.

Which of the following is usually done last in the scientific method of investigation

Explain why the saprotrophs and detritivores are placed to one side of the pyramid

Using a parental dna strand as a template, a new dna strand is synthesized by a. a replication fork. b. an endonuclease. c. dna polymerase. d. dna ligase.

What climate feature do arctic climates and desert climates share that makes their soil similar?

The graph below shows the mass of plants as succession progresses. What is the cause of the drop in the moss population?

A population is best represented by

Carolyn suffers from the excessive secretion of insulin in the bloodstream. the medical term for this condition is

Some biological hazards (such as bacteria, viruses, parasites, and fungi) are undetectable by sight, smell or taste and can potentially cause an illness. What are these biological hazards called?

What is a negative effect of using land as a resource

This plant structure gives plants their green color