The letter "A" in the accompanying figure represents ____

a. ectoderm
b. endoderm
c. mesoderm
d. neural plate
e. yolk


ANSWER: d

Biology & Microbiology

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The membrane-attack complex is a group of proteins that supplements the inflammatory response

a. True b. False Indicate whether the statement is true or false

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Lymph moves throughout the lymph vessels due to ____

a. contraction of the heart b. conscious actions c. constriction of blood vessels d. dilation of blood vessels e. skeletal muscle and breathing movements

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Some highly specialized cells do not undergo a cell cycle.

a. true b. false

Biology & Microbiology

 ©McGraw-Hill EducationBased on the phylogeny shown, the group of species including (2-5) can best be described as a

A. polyphyletic group. B. synapomorphy C. clade. D. cladogram. E. paraphyletic group.

Biology & Microbiology