Which process results in genetic recombination, but is separate from the process wherein the population size of paramecium increases?
A) budding
B) meiotic division
C) mitotic division
D) conjugation
E) binary fission
Ans: D) conjugation
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Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice?
A. synthesis of essential amino acids B. vitamin C synthesis C. leptin synthesis D. vitamin D synthesis E. vitamin K synthesis Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about essential nutrients can be made by bacteria in the intestines? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Interpretation of smell is accomplished
a. by the nasal epithelium. b. in the olfactory receptors. c. by centers in the brainstem. d. by the cerebral cortex. e. independently of olfactory receptors.
Which type of vessel offers the most resistance to blood flow?
a. artery b. arteriole c. capillary d. venule e. vein
Whereas _______ reactions are spontaneous and release energy, _______ reactions require an input of energy in order to occur.
Fill in the blank(s) with the appropriate word(s).