According to scientists which type of organism formed by endosymbiosis?

A. eukaryotes

B. fungi

C. Prokaryotes

D. archaea

Why does ice float on liquid water

In what order does blood flow through the body and heart? A. Right atrium, left atrium, lungs, right ventricle, left ventricle, body. B. Right atrium, left ventricle, lungs, left atrium, right ventricle, body. C.

On a tour of African countries, Mark contracts a bad case of traveler's diarrhea. Because he can't eat very much, his body starts to use energy sources other than carbohydrates. This would result in a. increased levels of urea in the blood. b.

Name three examples of biotechnology

Which of the following could be a sequence in the carbon cycle? A. plants take in carbon dioxide and produce glucose animals break down glucose and release carbon dioxide animals consume plants B.

Global warming is slowly melting the polar ice caps and glaciers, which are made up of freshwater. Marine organisms in which of the following zones of the ocean are going to be most affected by this process?

The two major pathways by which molecular nitrogen is converted into forms more useful to living organisms are

What does low white blood cell count and low neutrophils mean?

A. Many parts of the brain appear to have no useful function in today's world. b. Losses of small areas of certain parts of the brain rarely cause devastating, often permanent, losses of function. c.

Which of the following states was not a member of the Confederacy?