It is crucial to study ocean microbes because a. they control the major biogeochemical cycles that keep earth’s biosphere in balance b. they are a significant source of greenhouse gases and pollution c. they are frequently used as food sources in developing nations d. they provide a significant alternative energy source used to replace coal and oil

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

What kinds of molecules can pass through the cell membrane without any problem?