In DNA molecules,
cytosine pairs with adenine.
thymine pairs with uracil.
adenine pairs with uracil.
adenine pairs with thymine.
cytosine pairs with thymine.
adenine pairs with thymine.
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In succession, the ability of one species to make the area suitable for another species is called
A. secondary succession. B. climax succession. C. inhibition. D. facilitation. E. primary succession.
Determining the susceptibility of a microorganism to specific chemotherapeutic agents is an important service performed in the clinical microbiology laboratory.
Answer the following statement true (T) or false (F)
One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers:a
have several nuclei, while skeletal muscle fibers do not. b. are not striated, while skeletal muscle fibers are. c. are under voluntary control, while skeletal muscle fibers are not. d. branch and form complex networks, while skeletal muscle fibers do not. e. are cylindrical-shaped, while skeletal muscle fibers are spindle-shaped.
The risk of developing cancer can be decreased by:
a. increasing the amount of nitrates in the diet. b. exposing questionable tumors to x-rays. c. avoiding smoked, and salt-cured foods. d. examining the breasts and testes every two years. e. exposing neoplasms to UV radiation.