Which of these energy sources is formed from decayed and compressed plankton?
O A. Coal
O B. Geothermal
O C. Biomass
O D. Natural gas

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

Ture or false evidence for evolution includes millions of fossils

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different