Calories are units of _________.

A. ATP
B. food mass
C. entropy
D. energy


D. energy

Biology & Microbiology

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Which hormone slows bone deposition?

a. cortisol b. calcitonin c. estrogen d. testosterone e. growth hormone

Biology & Microbiology

Unlike both smooth and skeletal muscle, cardiac muscle has cells that

A) are held in a loose matrix of fibers. B) are striated. C) contract. D) are branched.

Biology & Microbiology

Which one of the following is the main reason that a typical eukaryotic gene is able to respond to a far greater variety of regulatory signals than a typical prokaryotic gene or operon?

(a) Eukaryotes have three types of RNA polymerase. (b) Eukaryotic RNA polymerases require general transcription factors. (c) The transcription of a eukaryotic gene can be influenced by proteins that bind far from the promoter. (d) Prokaryotic genes are packaged into nucleosomes.

Biology & Microbiology

Hydrogen ions (H+) are _____

a. indicated by a pH scale c. in blood b. unbound protons d. all of these

Biology & Microbiology