A(n) ________ is a chemical that can be used to sterilize materials.

A. antiseptic
B. oxidant
C. disinfectant
D. sterilant


Answer: D

Biology & Microbiology

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Myoglobin is a protein found in the muscles of cetaceans that:

a. stores energy. b. stores oxygen. c. maintains buoyancy. d. maintains heat. e. stores ATP.

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Skeletal muscles are connected to bones by cords of connective tissue called

a. muscle fibers. b. sarcomeres. c. tendons. d. ligaments. e. myofibrils.

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When a bird is exposed to the songs of potential rivals of its own species certain genes are turned off

within neurons in the song-controlling nuclei of the bird’s brain.

Indicate whether the statement is true or false.

Biology & Microbiology

Both first- and second-line defenses are specific defense mechanisms that are able to distinguish one pathogen from another

Indicate whether the statement is true or false

Biology & Microbiology