A prokaryote that occupies a habitat that is characterized by extreme heat (above 50 degrees Celsius) is a(n)

A. acidophile.
B. thermophile.
C. halophile.
D. hydrophile.
E. basophile.


B. thermophile.

Biology & Microbiology

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In 2005, a spot that is one centimeter from the center of a woody stem of an oak tree is in the bark. In what tissue will a spot that is one centimeter from the center be in 2050?

A) bark B) secondary phloem C) vascular cambium D) secondary xylem

Biology & Microbiology

Consider the cell cycle of a human cell.  During G2, what is the state of the homologous chromosomes?  

A.  The homologous chromosomes are lined up on the equator of the cell. B.  The homologous chromosomes have all been copied through DNA replication and are beginning to condense. C.  The homologous chromosomes have been pulled to their respective poles by the spindle apparatus. D.  The homologous chromosomes have not been replicated yet. E.  The homologous chromosomes are now in the haploid or n condition.

Biology & Microbiology

If you were a very thirsty cell, which process would you use to take in some nutrients secreted by one of your neighbors?

A. Phagocytosis B. Pinocytosis C. Receptor-mediated endocytosis D. Exocytosis

Biology & Microbiology

Four of the five terms involve fungus and food. Select the exception:

a. mold, blue cheese b. fermentation, soy sauce c. yeast, bread d. truffles, host trees e. soil fungus, penicillin

Biology & Microbiology