What term describes localized tumor growth?
a. metastasis
b. carcinoma in situ
c. pleomorphic
d. anaplastic
e. sarcoma
b. carcinoma in situ
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Which of the following statements about the big bang model is false? a. The big bang model proposes that the universe began when a single giant star exploded
b. Scientists can estimate the age of the universe by measuring the movements of galaxies. c. Evidence that all galaxies are moving away from one another supports the big bang model. d. The big bang is believed to have occurred 13 to 15 billion years ago.
Which of the following is not a normal causative agent of acute diarrhea with vomiting (food poisoning)?
A. Clostridium perfringens B. Bacillus cereus C. Staphylococcus aureus D. Clostridium difficile
Interneurons are found in the
a. dorsal root. b. spinal cord. c. sensory neurons. d. motor neurons. e. autonomic nervous system.
Two species of lizard live on the same tree and consume the same sorts of food. Regardless, neither species is in direct competition with the other. The key to this scenario is that one of the species is nocturnal; the other is diurnal. What is this called?
a. parasitism b. symbiosis c. resource partitioning d. herbivory