Prokaryotes are the ancestors of
a. protists.
b. fungi.
c. plants.
d. animals.
e. all of these.
Answer: e
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One of the many types of proteins found in the cytoplasmic membrane is involved in the chemotactic response and is called a
A) hydrolytic enzyme. B) chemoreceptor. C) binding protein. D) porin.
A blastocyst ____
a. releases hormones in the myometrium b. releases the egg into the oviduct c. implants in the endometrium d. matures into a chorion e. metabolically supports embryonic and fetal development
Why is the evolutionary origin of all eukaryotes no longer considered to be a simple evolution from a single Archaea species?
a. Archaea contain insufficient genetic material to explain eukaryotic evolution. b. Fossil records provide evidence that Archaea evolved after eukaryotes. c. Some eukaryotic genes share more similarity with Bacteria than Archaea. d. Some eukaryotes contain mitochondria, which are invariably fatal to Archaea.
An atom with more protons than electrons is called a(n) __________. Fill in the blank(s) with the appropriate word(s)