Metagenomic studies of prokaryotes have
revealed that
a. there is very little diversity among bacteria.
b. archaea are more closely related to bacteria
than to eukaryotes.
c. bacteria and archaea are essentially the
same organisms.
d. most archaea evolved from viruses.
e. none of these things were revealed by
metagenomic studies
E
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Sperm and egg cells contain half the number of chromosomes found in somatic cells, and are referred to as ________, which comes from the Greek word haploos, meaning "single."
Fill in the blank(s) with correct word
The introduction of a foreign species into an area where it is not native is called:a
parasitization. b. infestation. c. fragmentation. d. biotic pollution. e. commercial harvest
Dolphins use echolocation to maneuver around objects quickly and precisely to capture prey. Thus, you would expect them to have a larger-than-normal
A) limbic system. B) cerebrum. C) hypothalamus. D) cerebellum. E) amygdala.
Chloroplasts can make carbohydrate in the dark if provided with
a. ATP, NADPH and CO2 b. an artifically induced proton gradient c. organic acids or four carbon compounds d. a source of hydrogen e. photons and CO2