The low-molecular weight building blocks of polymers are called _____.
A) monomers
B) portions
C) octamers
D) monoblocks
E) minipolymers
Ans: A) monomers
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A plant seedling bends toward sunlight because _____
A) auxin migrates to the lower part of the stem due to gravity B) there is more auxin on the light side of the stem C) auxin is destroyed more quickly on the dark side of the stem D) auxin is found in greatest abundance on the dark side of the stem E) gibberellins produced at the stem tip cause phototropism
The reef building corals are not found below 60 m (200 feet) due to:
a. light requirements of the zooxanthellae. b. limited plankton as food. c. cold water. d. competition with non-reef building corals. e. predation by sea stars.
The immediate ancestors of the genus Homo belonged to the genus:a
Australopithecus. b. Pongo. c. Pan. d. Sahelanthropus. e. Ardipithecus
What is the name of the pigment that captures photons during photosynthesis?
A) photonogene B) titanium dioxide C) chlorophyll D) melanin