A mantle is found only among the
a. Arthropoda.
b. Annelida.
c. Echinodermata.
d. Mollusca.
e. Chordata.
Answer: d
Biology & Microbiology
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____ is/are considered to be the ancestor to both Homo neanderthalensis and Homo sapiens
a. Homo habilis b. Paranthropus loisei c. Homo floresiensis d. Denisovians e. Homo erectus
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Osteoporosis is enhanced by
a. deficient levels of calcium and vitamin D. b. lack of physical activity. c. smoking and excessive alcohol intake. d. excessive intake of cola drinks e. all of these.
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Which major biome type contains most of Earth's biodiversity?
A) desert B) tundra C) grasslands D) forests
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The largest prokaryote is ________
Fill in the blank(s) with correct word
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