Marissa is investigating a biochemical reaction involving carbon compounds. The reaction requires a specific enzyme. What is the role of the enzyme in this reaction?
A. to speed up the chemical reaction
B. to increase the activation energy of the reaction
C. to determine whether the reaction proceeds in the forward or reverse direction
D. to absorb the energy released by the reaction
E. to lengthen the carbon chain of each compound

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat. o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat. habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s