In negative feedback, the variable being regulated is changed in the _______ direction, while in positive feedback the variable is changed in the ________ direction.
A. same, opposite
B. decreasing, increasing
C. negative, positive
D. inhibitory, stimulatory
E. opposite, same
E. opposite, same
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________ pathways are those that function both catabolically and anabolically.
Fill in the blank(s) with the appropriate word(s).
Why is it a good idea to immunize little boys against rubella?
A. As this is a sexually-transmitted disease, vaccinating girls AND boys early in their lives prevents the spread of the disease in adulthood. B. We want to achieve herd immunity, and there's no reason why only girls would be infected by this virus. By vaccinating the entire population, we achieve a higher degree of herd immunity than is possible by vaccinating only girls. C. Only boys get this disease, and one of the common complications is sterility. D. While this disease is quite strikingly symptomatic in girls, it is completely asymptomatic in boys. Boys can be carriers and transmit it easily to girls they are in close proximity to without realizing it through respiratory secretions. This can lead to large-scale and dangerous outbreaks in the female population.
The matrix of connective tissue can be liquid, gel-like or solid.
a. true b. false
Mendel's work on the transmission of genes in pea plants is applicable to ____
A. only pea plants B. plants and some animals but not humans C. all plants, but only plants D. all plants and animals, including humans E. all organisms