Spindles are___
a. permanent cell structures.
b. present throughout every step of mitosis.
c. present during interphase.
d. mainly composed of microtubules.
e. all identical.
ANSWER: d
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Gingko trees are known to lose their leaves at a certain time each year throughout the United States. Based on this information, Gingko trees in China must behave the same way. These statements are an example of:
A. inductive reasoning B. deductive reasoning C. a theory D. an experiment
Gibbs free energy is defined as ________
A. the amount of energy available to do work B. the amount of energy lost as heat C. the amount of entropy D. the amount of potential energy in a system E. spontaneous energy
A phage that replicates inside the host cell and then lyses its host during its release is a
A. virulent or lytic phage. B. latent phage. C. lysogenic phage. D. dormant phage.
Which of the following does not represent a form of energy that can commonly be found in an
ecosystem? a. work, such as reproduction b. ATP c. heat d. ammonia e. glucose