In humans, where does lactose digestion occur?
a. stomach
b. mouth
c. small intestine
d. pancreas
C
Biology & Microbiology
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This figure suggests that adding more and more nutrients over time will result in
A) an increase in species diversity. B) an increase in species evenness. C) a decrease in overall productivity. D) a decrease in species diversity.
Biology & Microbiology
The upper atmospheric region rich in ozone (O3) that screens out incoming ultraviolet (UV) radiation is called
A. proterozoic region. B. stratosphere. C. ozone layer. D. troposphere. E. radiosphere.
Biology & Microbiology
In primary culture all cells survive.
a. true b. false
Biology & Microbiology
In mitosis, cells duplicate their chromosomes once and divide once. In meiosis, cells duplicate their chromosomes ________ and divide ________
A) twice; once B) once; once C) twice; twice D) once; twice
Biology & Microbiology