Which term refers to an individual with extra or missing copies of some of their chromosomes?
a. haploid
b. aneuploid
c. polyploid
d. euploid
Ans: b. aneuploid
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Both mitochondria and chloroplasts are
thought to have evolved by the process of
a. endosymbiosis. b. sexual selection. c. allopatric speciation. d. sympatric speciation. e. more than one of these.
Which of the following are true statements about the carbon cycle? Check all that apply.
_____ Carbon and nitrogen fixation are both facilitated by microbes. _____ Burning of gasoline is a contributor to the current imbalance in the carbon cycle. _____ Replacing rainforest with farms decreases atmospheric CO2 levels. _____ In water, inorganic carbon exists in two different forms, both of which can be used by autotrophs. _____ Carbon cycles locally.
Francesco Redi designed an experiment to test the notion of spontaneous generation. He left the first jar of meat open to the air and covered the second jar. The first jar would be called the ________ jar
A) conclusive B) hypothetical C) control D) experimental
This drug is normally injected but can also be processed into forms that can be smoked or inhaled. It is a synthetic opiate that produces feelings of ecstasy
A) caffeine B) alcohol C) heroin D) marijuana