By definition, substances that absorb visible light are called:a
porphyrins.
b. nucleotides.
c. hydrocarbons.
d. pigments.
e. photons
D
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A new species, ________, was recently shown to have two membranes, like a Gram-negative bacterium, but be phylogenetically related to the Gram-positive family Veillonellaceae.
Fill in the blank(s) with the appropriate word(s).
Females who are heterozygous for a violence-associated mutation in the X-linked MAOA gene will display abnormal behavior
a. True b. False Indicate whether the statement is true or false
Mutation of the C group gene in Arabidopsis
thaliana produces flowers that a. are sterile. b. have no carpels. c. have no stamens. d. have a profusion of petals. e. are all of these.
Angiosperms consist of the clades
A) cycads and mosses. B) gymnosperms and angiosperms. C) monocots and eudicots. D) cotyledons and roots.