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
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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.
Eggs can contain bacteria such as Salmonella. explain why cooking eggs make them safe to eat.
What will be an ideal response?
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
One element that does not cycle into the atmosphere is phosphorus
____________________ Indicate whether the statement is true or false.