If a plant appears blue to us, what wavelength of light is being reflected?
A) blue
B) green
C) red
D) yellow
A
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Ammonia-oxidizing bacteria play an essential role in the nitrogen cycle by ____
a. converting ammonia into nitrogen oxides b. converting ammonia into nitrites c. converting ammonia into ammonium d. converting nitrites into ammonia e. converting nitrites into nitrogen oxides
Which soil horizon is composed of organic
litter? a. A b. B c. C d. D e. E
Which statement is not true?
a. Nodes are present on horsetails. b. The rhizome on horsetails bears roots. c. The internode of a horsetail is the region where the leaves are attached. d. Horsetails are members of the subphylum Sphenophyta.
A set of local communities that are linked by the dispersal of multiple, potentially interacting species is referred to as a(n)
A) ecotone. B) archipelago. C) metapopulation. D) metacommunity.