The integration site for sensory and motor information in humans is the
A. basal nuclei.
B. cerebellum.
C. thalamus.
D. cerebral cortex.
E. hippocampus.
Answer: D
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Modification enzymes typically methylate specific bases within the recognition sequence to prevent digestion of the nucleotide sequence by restriction endonucleases
Indicate whether the statement is true or false.
What important feature(s) of noncovalent bonds makes them so important to life?
A. They are strong bonds that hold atoms together tightly in cells. B. They are weak in a cellular environment so they can be made, broken, and reformed easily. C. They can only occur in cells. D. Both a & c. E. Both b & c.
Choose the incorrect statement regarding adaptation from the following:
A) Some observed traits may not be adaptive, but are simply due to the process of genetic drift. B) Although adaptations may seem to exist for obvious reasons, their presence always needs to be tested. C) All traits that are observed are not necessarily adaptive. D) If a trait is adaptive, it will perfectly fit a need that confers an evolutionary advantage. E) At the molecular level, many of the variations among individuals, populations, and species may be selectively neutral.
The middle ear is connected to the upper throat by the __________ tube.
Fill in the blank(s) with the appropriate word(s).