An organism that uses methane or methanol as its sole carbon and energy source is called a ________.
A. methanotroph
B. methylogen
C. methylotroph
D. methanogen
Answer: C
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Put the following events of the mushroom life cycle in order, beginning with the development
of a fruiting body:i. Formation of a mycelium ii. Mating of compatible hyphae iii. Spore development and release iv. Spore germination
a. i, ii, iii, iv b. ii, iii, iv, i c. ii, iii, i, iv d. iii, iv, ii, i
Place the following digestive structures of an annelid in the proper order, beginning at the start of the digestive tract
a. mouth ?esophagus ?crop ?gizzard ?intestine ?anus b. mouth ?esophagus ?intestine ?crop ?gizzard ?anus c. mouth ?esophagus ?gizzard ?crop ?intestine ?anus d. mouth ?esophagus ?crop ?intestine ?gizzard ?anus e. mouth ?esophagus ?intestine ?gizzard ?crop ?anus
What is the name of the birth defect in which the neural tube fails to close completely?
a. neurulation b. fossa ovalis c. organogenesis d. spina bifida e. capacitation
Scientists isolate cells in various phases of the cell cycle. They find a group of cells that have times more DNA than G1 phase cells. The cells of this group are _____
A) between the G1 and S phases in the cell cycle B) in the G2 phase of the cell cycle C) in the M phase of the cell cycle D) in the S phase of the cell cycle