Matter is recycled within and between ecosystems through closed loops called biogeochemical cycles. How is this unlike how energy is passed through ecosystems? A. Energy has a multidirectional flow.
B. Energy is constantly reused.
C. Energy has a one-way flow.

What does the positioning of transcription factors determine?

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water