Organisms carrying genes from another species are called

a. transformed.
b. transgenic.
c. cancerous.
d. hybrids.
e. vectors.


B

Biology & Microbiology

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The central nervous system is made up of the

A. brain and spinal cord. B. spinal cord and spinal nerves. C. sympathetic and parasympathetic system. D. brain and endocrine organs.

Biology & Microbiology

Glucagon is produced by the

a. adrenal cortex. b. adrenal medulla. c. thyroid. d. kidneys. e. pancreas

Biology & Microbiology

Most bacterial cells keep from bursting in a hypotonic environment by:

a. an efficient water pump. b. a tough cell membrane. c. pumping large quantities of salts into the cell. d. a rigid cell wall. e. a stiff capsule.

Biology & Microbiology

The metabolic processes called fermentation

A) produce substrates for the Krebs cycle. B) are alternatives for the pentose phosphate pathway. C) use an organic molecule as a final electron acceptor. D) occur only when oxygen is readily available. E) produce substrates for glycolysis.

Biology & Microbiology