About half of all Americans rely on ___ for

their drinking water.



a. glaciers
b. sea water
c. stream water
d. aquifers
e. lake water


D

Biology & Microbiology

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The pair of traits that best illustrates convergent evolution is  

A.  an elephant's tusks and a beaver's teeth. B.  a lizard's arm and a bird's wing. C.  a dragonfly's wing and a butterfly's wing. D.  a cartilage skeleton in a shark and a bone skeleton in a dolphin. Clarify Question What is the key concept addressed by the question? What type of thinking is required?   Gather Content What do you already know about convergent evolution? What other information is related to the question?   Choose Answer Given what you now know, what information is most likely to produce the correct answer?   Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Algae may directly infect humans and cause disease

Indicate whether this statement is true or false.

Biology & Microbiology

Electron transport reactions that occur in the mitochondria of eukaryotes take place on the inner membrane of that structure.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Based on Figure 18-11, the two present day continents that should have the most closely related plant

and animal species are:a.
North and South America.
b. Africa and Australia.
c. Africa and South America.
d. Australia and India.
e. Eurasia and India

Biology & Microbiology