John Martin

What will be an ideal response?


The Iron Hypothesis
"Give me a half a tanker of iron and I will give you another ice age"

Biology & Microbiology

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Bacteroids are

a. specialized nitrifying bacteria. b. small buds from ammonifying bacteria. c. specialized bacteria that help some plant roots absorb phosphorus. d. enlarged and immobilized nitrogen-fixing bacteria. e. interactions between plant root hairs and bacteria.

Biology & Microbiology

Four of the five answers listed below can function to isolate populations. Select the exception

a. geography b. behavior c. time d. gametes e. external fertilization

Biology & Microbiology

A eukaryotic chromosome would most likely have only one origin of replication

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

Which antibiotic is overcome by beta-lactamases?

a. Tetracycline b. Sulfonamide c. Penicillin d. Tetracycline, Penicillin, and Sulfonamide are all affected by beta-lactamase.

Biology & Microbiology