An individual who avoids the pull of gravity is exhibiting
(a) negative phototaxis.
(b) positive geotaxis.
(c) negative geotaxis.
(d) positive thigmotaxis.
(d) positive thigmotaxis.
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Organisms that require high levels of sodium chloride in order to grow are called ________ organisms.
Fill in the blank(s) with the appropriate word(s).
Which of the following is TRUE of cell cleavage?
A. It involves consecutive cycles of cell division without cell growth. B. It forms a blastula. C. It is a rather slow event of embryonic development. D. It involves consecutive cycles of cell division without cell growth and forms a blastula. E. It is a rather slow event of embryonic development involving consecutive cycles of cell division.
The pH of your stomach is between 1 and 3. Use your knowledge of polar and nonpolar substances to explain why
the acids in your stomach do not alter the pH of your blood.
What will be an ideal response?The process by which chromosomes fail to separate during meiosis is called ____
a. aneuploidy
b. trisomy c. monosomy d. nondisjunction e. polyploidy