Temperatures in all animal species are regulated primarily by behavioral mechanisms
Indicate whether the statement is true or false.
ANS: F, homeostatic
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When division of the zygote reaches the eight-cell stage and the planes of cleavage of the upper four cells line up with those of the bottom four cells so that two tiers of cells result, one directly above the other, the type of cleavage is called:
A. direct cleavage B. spiral cleavage C. indirect cleavage D. protostome cleavage E. radial cleavage
Asexual reproduction in ascomycetes takes place by means of
A. ascogonia. B. ascospores. C. conidia. D. motile gametes. E. zygospores.
The ________ is used to convert the linear sequences of bases in DNA to the sequence of amino acids in proteins
Fill in the blank(s) with correct word
Partial or complete loss of hearing (deafness) can be caused by damage to the _____
I) axons of the neurons associated with each hair cell that carry information to the brain II) hair cells (the sensory receptors) in the cochlea III) tympanic membrane, or eardrum A) only II B) only III C) only I and II D) I, II, and III