Four of the five structures listed below are parts of

the same organ system. Select the exception.
a. trachea
b. swim bladder
c. alveoli
d. bronchiole
e. glottis


Answer: b

Biology & Microbiology

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Coelomates are

A. two embryos that develop in the same coelom. B. animals that have a true coelom. C. animals that have two coeloms. D. animals that have no coelom. E. animals in which the coelom disappears at gastrulation.

Biology & Microbiology

If the diploid number of chromosomes for this cell is six, what stage is represented by this

figure?

a. mitosis b. meiosis I c. meiosis II d. either mitosis or meiosis II

Biology & Microbiology

The immunological reaction that occurs when there is an optimal ratio of antigen and antibody, producing a lattice at the zone of equivalence is known ________.

A. immunodiffusion B. immunoprecipitation C. immunoblotting D. immunoelectrophoresis

Biology & Microbiology

Why would researchers want to have both genomic libraries and cDNA libraries from a particular

organism?

a. The genomic library is generally too big to be helpful; a cDNA library, being smaller, is much easier to study. b. A cDNA library will be the same in every cell; the genomic library tells researchers which genes are being expressed in individual cell types. c. The cDNA library helps us understand how retroviruses work; the genomic library does not. d. The cDNA library is a lot easier to clone than a genomic library. e. A genomic library will be the same in every cell; the cDNA library tells researchers which genes are being expressed in individual cell types.

Biology & Microbiology