The ____ component of the cell membrane functions as a selective barrier, while the ____ component
has specific functions such as transport, recognizing other cells, and binding to other cells.
a. carbohydrate, nucleic acid
b. protein, lipid
c. lipid, protein
d. lipid, carbohydrate
e. carbohydrate, protein
C
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Receptors for the general senses are
A. limited to the head. B. limited to the legs. C. found only in the brain and spinal cord. D. found throughout the body. E. found only on the surface of the body.
During menopause:a
estrogen levels rise. b. menstruation ceases. c. many ova are released. d. women experience cold flashes. e. all of these are correct
What part of Darwin's theory was incomplete due to a lack of knowledge at the time of publication?
How does the synthetic theory of evolution explain this? What will be an ideal response?
Which is incorrect about Neanderthals?
A. They interbred with the modern humans that replaced them. B. They were replaced by Cro-Magnons. C. They abruptly disappeared from the fossil record about 34,000 years ago. D. They made diverse tools. E. They were named after the Neander Valley of Germany.