An organism that is labeled a cryophile is capable of

A) growth at 4°C.
B) growth in hydrothermal vents.
C) synthesizing liquid nitrogen.
D) producing large quantities of liquid hydrogen.
E) both choices C and D


A) growth at 4°C.

Biology & Microbiology

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. Reversible reactions in a cell rarely reach equilibrium because ____

a. the products are generally reactants in other reactions and are thus immediately used b. a cell at equilibrium is dead c. they are highly regulated to prevent overuse of reactants d. cells have no way of measuring the relative ratios of reactants and products e. conditions in the cell change too rapidly for any reaction to ever reach equilibrium

Biology & Microbiology

What aspect of chromosome behavior most clearly accounts for Mendel's law of independent assortment?

A) movement of sister chromatids to opposite poles at anaphase II of meiosis B) movement of homologous chromosomes to opposite poles at anaphase I of meiosis C) crossing over between homologous chromosomes during prophase I of meiosis D) replication of chromosomes prior to meiosis E) independent alignment of different homologous pairs on the metaphase I spindle

Biology & Microbiology

Which of the following statements is FALSE?

A) Carbon, hydrogen, oxygen, and nitrogen are the most abundant elements of living matter. B) Some naturally occurring elements are toxic to organisms. C) All life requires the same essential elements. D) Iron is needed by all humans.

Biology & Microbiology

Some elongated fimbriaare important in transferring DNA between bacteria

____________________ Indicate whether the statement is true or false.

Biology & Microbiology