What are plants that flower only once before they die, normally after two seasons of growth, called?
A. monocots
B. annuals
C. perennials
D. dicots
E. biennials
Answer: E
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Enzymes that are secreted out of the cell to aid in the acquisition and digestion of environmental nutrients are called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT true about
restriction enzymes?
a. Restriction enzymes recognize specific DNA sequences. b. Restriction enzymes cut DNA independently of its origin. c. Restriction enzymes recognize specific nucleotide sequences. d. Restriction enzymes cut RNA or DNA sequences at specific sites. e. More than one of these is NOT true.
The gray matter of the brain is associated with the
a. cerebral cortex. b. pons. c. optic chiasm. d. corpus callosum. e. thalamus.
What type of RNA carries the information that specifies a protein?
A. transfer RNA B. ribosomal RNA C. messenger RNA D. double-stranded RNA E. complementary RNA