Which of the following is a common way in which both phosphorus and sulfur are deposited on land?

a. rock weathering
b. condensation
c. sublimation
d. photosynthesis


a. rock weathering

Biology & Microbiology

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Mitochondrial Eve was

A) fossil evidence of the Biblical Eve. B) a figurative first woman who had a mtDNA sequence that could have given rise, by mutation, to all modern human mtDNA. C) a hominid who had features of both australopithecines and Homo. D) a famous female paleontologist who has studied several fossil hominids in Ethiopia.

Biology & Microbiology

Fast and ____________________ muscle fibers contract rapidly but do not produce sustained contractions, whereas slow and ____________________ muscle fibers contract slowly but can produce energy for long periods of time via aerobic respiration

Fill in the blank(s) with correct word

Biology & Microbiology

Phytochemicals from soy may help

a. high blood pressure. b. increased incidence of athletes foot. c. cause macular degeneration. d. lower cholesterol. e. none of these.

Biology & Microbiology

One secondary spermatocyte ultimately produces:a

one mature sperm. b. two mature sperm. c. four mature sperm. d. eight mature sperm. e. an indeterminate number of sperm

Biology & Microbiology