Alab is performed to study the effect of ph and heat on the function of the catalase enzyme found in carrot plants
what is the dependent variable(s) in this lab?

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing