Which observation was most influential to Charles Darwin?

A) the wide variety of living things in South America
B) the difference between organisms of South America and organisms of Europe
C) the similarity between organisms of South America and organisms of Europe
D) the slight differences between organisms on nearby islands


D

Biology & Microbiology

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Superoxide dismutase and catalase work together to convert superoxide into

A) peroxide. B) oxygen. C) ozone. D) water.

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You go for another hike in the forest and wind up back at the same population of 100 flowering plants. You notice that one individual of the population grows in full shade, and all the others grow in at least partial sun

You take a leaf sample from the individual in the shade, sequence its DNA, and notice that the individual is heterozygous. There is a mutation in the LLT gene (the mutant is designated LLT-s). t or f: This population can evolve. t or f: This population can only evolve through genetic drift. t or f: This population can only evolve through natural selection. What will be an ideal response?

Biology & Microbiology

What is the most effective contraceptive approach of those listed?

a. withdrawal b. abstinence c. condom d. intrauterine device e. rhythm method

Biology & Microbiology

The figure above illustrates a ____ reaction that produces one ____ and a ____

a. condensation; hydroxyl; polymer b. condensation; water molecule; polymer c. cleavage; water molecule; monomer d. rearrangement; water molecule; polymer e. rearrangement; hydrogen ion; polymer

Biology & Microbiology