Individuals can have MRSA as part of their normal flora or microbiota
a. true
b. false
Ans: a. true
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A(n) ____ is a single main root that is adapted for storage and typically grows downward and fairly deep
A(n) ____ is a single main root that is adapted for storage and typically grows downward and fairly deep A(n) ____ is a single main root that is adapted for storage and typically grows downward and fairly deep.
a. adventitious root b. fibrous root c. rhizome d. taproot e. tuber
The products of mitosis are
a. one nucleus containing twice as much DNA as the parent nucleus. b. two genetically identical cells. c. four nuclei containing half as much DNA as the parent nucleus. d. four genetically identical nuclei. e. two genetically identical nuclei.
Cargo ships that entered the Great Lakes through canals in the St. Lawrence River inadvertently introduced zebra mussels. This species is not native to the Great Lakes and reproduces at a very high rate. Zebra mussels are filter feeders and are very efficient at filtering out phytoplankton and zooplankton. How would their introduction impact the organisms on the Great Lakes?
A) Biodiversity would increase because of the introduction of another species to the ecosystem. B) The native organisms would not be impacted at all. C) Their impact would be negligent because the lakes are so big and do not have other organisms that feed on the plankton. D) The native organisms that depended on the same food source would decrease in population, affecting the rest of the organisms in the food web.
An influx of calcium ions causes vesicles to fuse with the presynaptic membrane and release neurotransmitter into the synapse
Indicate whether the statement is true or false