The following nutrient most associated with
eutrophication is:
a. iron.
b. hydrogen.
c. oxygen.
d. carbon.
e. phosphate.
E
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Nondisplaced
What will be an ideal response?
The loss of genetic diversity in crop plants can become disastrous. The Irish Potato Famine is an example of this problem. Which of the following is NOT a correct statement about the Irish Potato Famine?
A) Most of the potatoes in Ireland were propagated from cuttings of the same plant. B) Most of the potatoes in Ireland were genetically the same. C) When the crops were infected by a rot-causing mold, all of the potato plants were susceptible and most were wiped out. D) The potato originated in Ireland. E) In the mid-1800s, much of the population of Ireland depended on potatoes.
To view the path of blood flow through the heart and body, scientists and physicians perform an angiogram by injecting a dye into the blood and monitoring its movement. Imagine that this dye was injected into the pulmonary vein. Which of the following is
the correct order of structures that the dye will flow through immediately after the pulmonary vein? A) lungs, pulmonary artery, left atrium, left ventricle B) left atrium, left ventricle, aorta, body arteries C) right atrium, right ventricle, aorta, body arteries D) lungs, pulmonary artery, right atrium, right ventricle
DNA runs in _________ directions called an __________.
Fill in the blank(s) with the appropriate word(s).