Crown gall is caused by a prokaryote plasmid that can be expressed in plant cells
Indicate whether this statement is true or false.
TRUE
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The stomach of which one of the following birds contains a gland that produces a foul smelling, yellow colored oil?
a. pelicans b. gulls c. terns d. albatrosses e. oystercatcher
Water takes longer than air to warm up or cool off because of water's high
A) specific heat. B) viscosity. C) surface tension. D) density.
The function of lymph nodes is to filter pathogens, microorganisms, and abnormal cells from the lymph before it returns to the cardiovascular system.
a. true b. false
Chordae tendineae:a
hold the AV valves in place. b. contract when the heart contracts. c. are one part of the conductance system of the heart. d. regulate blood flow into the ventricles. e. are stretched during ventricular systole