Plate tectonics theory is supported by evidence

from
a. the worldwide fossil record.
b. global distribution of existing species.
c. the sea-floor spreading.
d. all of these.
e. none of these.


D

Biology & Microbiology

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In skeletal muscle, calcium ions are stored in the sarcoplasmic reticulum.

Answer the following statement(s) true (T) or false (F)

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Chlorophyll a absorbs which color(s) of light?

a. red b. green c. violet d. red, violet, and orange e. red, violet, and green

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The settling of an embryo into the lining of the uterus is called 

A. fertilization. B. cleavage. C. menses. D. implantation.

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What is the name of the mesoderm-derived, calcium-stiffened structures that comprise the internal skeleton of echinoderms?

a. ampullae b. ossicles c. madreporites d. radial canals

Biology & Microbiology