Which characteristic is correlated with cancer cells and metastasis?
A. Altered nuclear and cytoplasmic controls governing cell growth and division
B. Increased use of aerobic respiration
C. Expansion of the cytoskeleton
D. Normal chromosome number
E. Decreased blood supply to the tumor
Answer: A
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The atomic number of an element is equal to the number of:
A. protons plus neutrons. B. neutrons plus electrons. C. neutrons only. D. protons only. E. protons plus electrons.
Which of the following animals would you predict would have the highest mass-specific metabolic rate?
A. a lizard B. a squid C. an elephant D. a goose E. a hummingbird
The hadal zone is that part of the benthic environment deeper than 6000 m. Indicate whether the statement is true or false
Helicobacter pylori can grow in the stomach because it
A) hides in macrophages. B) makes a capsule. C) possesses an enzyme that neutralizes HCl. D) makes HCl. E) invades epithelial cells.