Centrioles are only found in plant cells
a. True
b. False
b
Biology & Microbiology
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The building blocks of nucleic acids are
a. amino acids. b. nucleotides. c. 5 carbon sugars. d. fatty acids. e. ribosomes
Biology & Microbiology
Four of the five flower responses listed below follow
24-hour cycles. Select the exception. a. solar tracking b. flowers open in the morning c. circadian rhythm d. photoperiodism e. flowers close at night
Biology & Microbiology
Prior to the onset of lactation, the mammary glands are prepared for the production of milk by
A) the hormonal action of estrogen and progesterone. B) the completion of ovulation. C) degeneration of the corpus luteum. D) deactivation of FSH, LH, and GnRH. E) synthesis of FSH.
Biology & Microbiology
Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein.
a. true b. false
Biology & Microbiology