Biological membranes contain bilayers containing mostly ________.
A. prostaglandins
B. oils
C. cholesterol
D. phospholipids
E. triglycerides
Answer: D
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To create a multicellular eukaryotic transgenic organism, a researcher
A) introduces foreign DNA into a fertilized ovum. B) injects a gene of interest into a somatic cell. C) injects a gene of interest into several somatic cells. D) introduces foreign DNA into somatic cells in culture and transplants them.
Climate
a. changes with the seasons. b. refers to the atmospheric conditions at a particular place at a particular time. c. is determined by temperature and availability of water. d. is determined by the organisms living in a particular area. e. is the same throughout the globe.
Which of the following is most likely to function as a defense system?
A. the nervous system B. the sensory system C. the endocrine system D. the musculoskeletal system E. the integumentary system
Resolution is ______ with a longer wavelenght of light
A. worsened B. not possible C. not changed D. improved