What is the primary reason internal homeostasis must be maintained?
A) Most organisms have not evolved mechanisms to control positive feedback systems.
B) Enzymes must retain their correct three-dimensional structure.
C) Homeostasis prevents the wasting of stockpiles of coenzymes.
D) Unregulated variations cause the cells' DNA to mutate.
E) Wide swings in the internal environment interfere with normal metabolic reactions.
E
You might also like to view...
If a water molecule passes through the outer membrane of a chloroplast, how many more membranes will it have to move through to be in the stroma?
A. 1 B. 2 C. 3 D. 4 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about the structure of a chloroplast? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
Many types of cancer are known to overexpress the receptor protein tyrosine kinase. Which molecular technique can be used to reduce expression of an oncogene in vitro?
A) PCR B) DNAse sensitivity assay C) RNAi D) Southern blotting E) western blotting
How many chromosomes does an individual with Turner syndrome have?
A) 2n + 1 B) n + 1 C) 2n ? 1 D) n ? 1
Why is it more difficult to eradicate a disease if the reservoir is a wild animal?
a. It involves destruction of wild animals, which can have a serious impact on biodiversity. b. Wild animals are more difficult to immunize than domestic animals. c. Chemicals used to eradicate the reservoir animals may adversely affect nonreservoir species. d. All of the above are correct.