Which of the following is a biological catalyst?

a). rna
b). enzymes
c). antibody
d). steroid

How does a lytic infection differ from a lysogenic infection?

The transport tubes from food came down the plant are called?

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex