Answer:
sorry have not learned that yet
Explanation:
The answer is A!
Ron is showing an invalid experimental placebo in this experiment due to the positive response.
goodluck, :)
D. Predators
Predators keep populations of other species in check. This was pretty clearly demonstrated in Yellowstone National Park after the wolves were eradicated there. The deer populations increased to the point that the aspen trees nearly disappeared due to the saplings' being eaten by deer. Since the reintroduction of wolves to the park, the aspen trees have begun to flourish once again.
RNA is single-stranded while DNA is double-stranded.
RNA contains uracil while DNA contains thymine.
RNA has the sugar ribose while DNA has the sugar deoxyribose.
Answer: Enzymes <u>b. increase</u> the rate of a specific chemical reaction.
