________ are complex communities of various types of microbes that adhere to surfaces

A) Aggregates
B) Colonies
C) Isolates
D) Biofilms
E) Media


D

Biology & Microbiology

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In the nitrogen cycle, the bacteria that replenish the atmosphere with nitrogen are _____

A) Rhizobium bacteria B) nitrifying bacteria C) denitrifying bacteria D) methanogenic protozoans E) nitrogen-fixing bacteria

Biology & Microbiology

An octopus "tastes" with:

a. its mouth b. its nose c. receptors on its head d. its tentacles e. its skin

Biology & Microbiology

Some drugs used in chemotherapy stop cell division by affecting the cytoskeleton. The drugs would cause functional disabilities in which of the following?

A) flagella B) cilia C) neither flagella nor cilia D) both flagella and cilia

Biology & Microbiology

The motor cortex is part of the _____

A) cerebrum B) cerebellum C) spinal cord D) medulla oblongata

Biology & Microbiology