A(n) ____ skeleton is an internal fluid filled chamber against which muscles exert force
a. exoskeleton
b. hydrostatic
c. hydrophobic
d. hydrophilic
e. endoskeleton
ANSWER: b
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Which of the following explains why leaf primordia develop in spiral or whorled patterns around the stem tip?
A. accumulation of auxin in the stem tip B. depletion of auxin near leaf primordia C. accumulation of auxin in leaf primordia D. loosening of cell walls E. None of these choices is correct
Which of the following is essential for the development of discrete, isolated colonies?
A. Solid medium B. Selective medium C. Differential medium D. Broth medium E. Assay medium
The activation of enzymes by the removal of a
portion of polypeptide chain is an example of a. transcriptional control. b. transcript processing control. c. transport control. d. translational control. e. post-translational control.
Pasteur's research on anthrax and rabies contributed to the development of the field of epidemiology/immunology/etiology)
What will be an ideal response?