Which of the following is used by phylogenetic biologists to determine how organisms are related evolutionarily? 

A. DNA analysis
B. fossils
C. comparative studies of the anatomy of organisms
D. All of these answers are correct.


D. All of these answers are correct.

Biology & Microbiology

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Facilitated diffusion and active transport require a carrier protein to mediate the movement across the plasma membrane.

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

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Which pathogens require a host cell because they aren't able to make proteins on their own?

A) blue-green algae B) bacteria C) protozoans D) viruses

Biology & Microbiology

The sample size in this experiment is the number of flies in each treatment.

a. true b. false

Biology & Microbiology

Which of the following pairs is mismatched?

A) dinoflagellates — paralytic shellfish poisoning B) brown algae — algin C) red algae — agar D) diatoms — petroleum E) green algae — prokaryotic

Biology & Microbiology