Which of the following characterizes relatively K-selected populations?
A) offspring with good chances of survival
B) many offspring per reproductive episode
C) small offspring
D) a high intrinsic rate of increase
E) early parental reproduction
Ans: A) offspring with good chances of survival
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A strain of bacteria containing F? factor genes is called a
A. monozygote. B. heterozygote. C. homozygote. D. merozygote. E. hemizygote.
Which pair is mismatched?
A. Trypanosoma - causes African sleeping sickness B. Trichomonas - sexually transmitted C. Giardia - transmitted by feces in drinking water D. Plasmodium - causes Chagas disease E. Histoplasma - causes Ohio Valley fever
The bitter receptor hTAS2R38 is activated by glucosinolates found in plants such as turnips and broccoli. The gene variant a person has determines how sensitive their neurons are to these compounds. What would you predict for people who have the high-sensitivity variant of hTAS2R38?
Unlike sweet, salty, sour, or umami, the "bitter" category of tastants includes wide structural variety of detected molecules. Multiple receptors are required to sense the different bitter tastants. What do they have in common? Bitter taste is thought to have evolved as a warning system for toxic compounds. A. They will not easily digest turnips and broccoli. B. They will have to eat more turnips and broccoli to get the same flavor. C. They will dislike turnips and broccoli. D. They will become allergic to turnips and broccoli. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about taste receptors? 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?
Nearly everyone appears to be infected with polyomaviruses BK and JC by the age of 15
Indicate whether the statement is true or false