If one species in a community dies out or moves, the community will

What is the main fuel source for the work of the cell

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.