Muscles of inspiration (inhalation) include the ________.
A. abdominal muscles
B. biceps
C. diaphragm
D. two of the above
Ans: C. diaphragm
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____________________ are mutations involving the increase of the number of repeat sequences in genes. Fill in the blank(s) with the appropriate word(s)
A secondary cell wall would be located:a
inside the cytoplasm. b. embedded within the primary wall. c. embedded within the plasma membrane. d. inside the plasma membrane. e. inside the primary cell wall.
Some of the olfactory receptor (OR) genes in humans
A. have been inactivated, reducing our olfactory capabilities compared to other primates. B. have been conserved more rigidly, resulting in increased orthologs compared to other primates. C. have duplicated more frequently, resulting in increased paralogs compared to other primates. D. have been activated, enhancing our olfactory sense compared to other primates.
What is necessary in order for organisms to change over generations?
What will be an ideal response?