What cyclic process results from the introduction of sewage as nutrients?
a. Biological magnification
b. Decomposition
c. Eutrophication
d. Photosynthesis
c
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The semilunar valves of the mammalian heart _____
A) are the route by which blood flows from the atria to the ventricles B) are found only on the right side of the heart C) are the attachment sites where the pulmonary veins empty into the heart D) prevent backflow of blood in the aorta and pulmonary arteries E) are at the places where the anterior and posterior venae cavae empty into the heart
Within a mycorrhizal relationship the fungi provide a greater surface area for mineral and water loss while the plant furnishes the fungi with sugars and amino acids.
Answer the following statement true (T) or false (F)
In the laboratory, fruit flies (Drosophila) were artificially selected for the number of bristles on their bodies. One population (R) was selected for low numbers of bristles, a second population (S) for high numbers of bristles.After 35 generations (about 1 year's time), the two populations R and S were studied. Researchers found
A. a huge increase in S, a huge decrease in R, with no overlap whatsoever. B. a vast, overlapping range of bristle numbers was seen. C. a slight increase in bristles in S, a slight decrease in R, with a little overlap in the middle ranges. D. no change was seen; it's much too soon. E. some slight increase of bristle numbers was already evident.
A good sports drink contains
What will be an ideal response?