Health officials will test water supplies for fecal contamination by looking for which bacteria?

a. Staphylococcus aureus.
b. Streptococcus pyogenes.
c. Escherichia coli.
d. Mycobacterium tuberculosis.
e. Clostridium botulinum.


C

Biology & Microbiology

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The structure(s) that allow for the diffusion of gasses, such as CO2, into and out of a leaf is(are) the:

A. cuticle. B. stomata. C. veins. D. mesophyll cells. E. vascular bundles.

Biology & Microbiology

Eggs can contain bacteria such as Salmonella. explain why cooking eggs make them safe to eat.

What will be an ideal response?

Biology & Microbiology

What do both the rho-dependent and rho-independent mechanisms of termination have in common?

A. Terminate transcription immediately after the stop codon B. A sequence rich with A-U base pairs C. Both require a helicase to separate the DNA-RNA complex D. Formation of a stem-loop structure

Biology & Microbiology

One element that does not cycle into the atmosphere is phosphorus

____________________ Indicate whether the statement is true or false.

Biology & Microbiology