What organism is defined as a multicelled organism that develops through a series of stages and moves about during
part or all of its life?
a. archaea
b. bacteria
c. fungi
d. animals
e. plants
ANSWER: d
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____________________ is spread by droplets produced when an infected person sneezes or coughs
Fill in the blank(s) with correct word
Monoclonal antibodies obtained from a hybridoma provide
A. a large amount of an antibody that is specific for a particular epitope. B. a single antibody that recognizes many epitopes. C. many epitopes that recognize a specific antibody. D. a large number of B cells.
One of the finest available sequences of fossils shows how horses have changed slowly and by subtle steps from small, shrub-browsing ancestors to the large, grass-grazing modern horse. A large number of fossil species have been named, and it is often
difficult to decide on the identity of a fossil horse because transitional forms are common. This record of evolution best fits the idea of A) the gradual model of speciation. B) punctuated equilibrium. C) adaptive radiation. D) hybrid breakdown.
Which of the following agents is capable of inducing conversion of a prophage to the lytic cycle?
A) UV light B) X rays C) presence of +ssRNA D) both UV light and X rays E) both UV light and the presence of +ssRNA