Red blood cells are also known as ____.

A. erythrocytes
B. neutrophils
C. lymphocytes
D. eosinophils
E. macrophages


Answer: A

Biology & Microbiology

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When a planarium is cut in half, a head will regenerate from the wounded anterior end and a tail will regenerate from the wounded posterior end. This is an example of

A. conditional specification. B. autonomous specification. C. fate mapping. D. Spemann's organizer. E. transforming growth factor.

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Two technologies that sped progress of the human genome project in 1991 were

A) recombinant DNA technology and PCR. B) amniocentesis and chorionic villus sampling. C) the invention of the Internet and personal computers. D) expressed sequence tags and microarrays.

Biology & Microbiology

Evidence that supports the theory of evolution is found in the studies of

A) embryos. B) fossils. C) biochemistry. D) embryos, biochemistry, fossils, and artificial selection. E) artificial selection.

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The body wall of an earthworm contains layers of ____ and ______ muscle tissue

What will be an ideal response?

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