Carbon dioxide can be released into the atmosphere by all of the following EXCEPT:

a) volcanic eruptions
b) photosynthesis
c) cellular respiration
d) burning of fossil fuels


b) photosynthesis

Biology & Microbiology

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Assuming that a clean-catch midstream urine was processed in the Clinical Microbiology Laboratory (CML), which one of the following colony counts is (are) indicative of a urinary tract infection?

A) 10,000 CFU/mL B) 100,000 CFU/mL C) >100,000 CFU/mL D) both b and c

Biology & Microbiology

Cy3 and Cy5 are radioactive tags used in microarrays

Indicate whether the statement is true or false

Biology & Microbiology

Based on what you know about resistance to infection, why are some people resistant to HIV?

A) They have a strong immune system that clears the virus completely. B) They have been immunized in an experimental program. C) They can't be infected with HIV even when exposed. D) They never engage in risky behavior and thus can't become infected.

Biology & Microbiology

What type of allele produces its effects in only homozygous individuals?

A) Recessive B) Haploid C) Diploid D) Dominant

Biology & Microbiology