Barnacles live on the bodies of whales and other aquatic organisms. They do not hurt their host but gain the benefit of a habitat and food supply from the host. This relationship is called

a) commensalism
b) parasitism
c) mutualism
d) predation


Ans: a) commensalism

Biology & Microbiology

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The prevention of infection caused by microorganisms is called

A. antisepsis. B. sanitization. C. sterilization. D. disinfection.

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What phase of meiosis is seen in the figure above?

A) metaphase I B) metaphase II C) anaphase I D) anaphase II

Biology & Microbiology

A recent study compared the Homo sapiens genome with that of Neanderthals. The results of the study indicated that there was a mixing of the two genomes at some period in evolutionary history

Additional data consistent with this hypothesis could be the discovery of _____. A) some Neanderthal sequences not found in living humans B) a few modern H. sapiens with some Neanderthal sequences C) duplications of several Neanderthal genes on a Neanderthal chromosome D) some Neanderthal chromosomes that are shorter than their counterparts in living humans

Biology & Microbiology

Insecticide resistance is an example of artificial selection

Indicate whether the statement is true or false.

Biology & Microbiology