Animal growth primarily occurs by an increase in the:a
number of tissues and organs.
b. number of cells.
c. types of cells produced.
d. number of cell functions.
e. number of cell shapes
b
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When the end product of a pathway inhibits catalysis of the first step of that pathway, this phenomenon is called
A. feedback inhibition. B. metabolic channeling. C. reversible covalent modification. D. non-competitive inhibition.
Cylindrical structures in compact bone containing osteocytes arranged around a central canal are known as ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following defines an inactive viral segment of nucleic acid inserted into a bacterial chromosome during a lysogenic cycle?
a. retro virus b. prophage c. temperate phage d. transduction
The Delaney Clause
Select one: a. prevents the intentional use as food additives of compounds shown to cause cancer in laboratory animals or humans. b. defines the maximum dosage of a food additive that causes no observable effects in rats and mice. c. lists food additives that are generally recognized as safe. d. grants the USDA jurisdiction over food additives.