What three things does a producer need for performing photosynthesis

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

Nucleic acids offer variability because they contain alternate forms of genes called .