Which is not a property that is characteristic of a community?
a. energy and nutrient flow throughout the community
b. the types of species present
c. the relative abundance of each species
d. the interactions among different species
e. All of these are properties that are characteristic of a community.
E
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Glucose is transported from the intestinal lumen into epithelial cells through _____ and from the intestinal epithelium into circulation by _____
A) facilitated diffusion; primary active transport B) cotransport with sodium; cotransport with sodium C) cotransport with sodium; facilitated diffusion D) active transport; active transport
You wish to determine which organs function to remove waste products from the hemolymph (blood) of an insect. You do so by injecting a suspension of particulate dye particles into the abdominal cavity of an anesthetized cricket.Where will you find these dye particles 45 minutes later, after you euthanize and dissect the cricket?
A. in the urinary bladder B. in the nephridia C. in the antennal glands D. in the Malpighian tubules E. in the protonephridia F. in the nephrons of the kidneys 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 insect physiology? 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?
Respond to statements 120–124 in reference to the five hormones
listed below. a. estrogen b. luteinizing hormone c. somatotropin d. oxytocin e. antidiuretic hormone M 120. This hormone controls water retention and loss. M 121. The mammary glands are the target for this hormone. D 122. This hormone induces protein synthesis and cell division in young animals. D 123. The kidneys are the target for this hormone. M 124. Uterine contractions are induced by this hormone.
In oxidative phosphorylation, ATP production is coupled to the events in the electron-transport chain. What is accomplished in the final electron-transfer event in the electron-transport chain?
(a) OH– is oxidized to O2 (b) pyruvate is oxidized to CO2 (c) O2 is reduced to H2O (d) NAD+ is reduced to NADH