Which of the following cells is matched to an incorrect function?
A. eosinophil—important to the elimination of parasites
B. mast cell—releases histamine
C. macrophage—phagocytic cell
D. neutrophil—important antigen presenting cell
E. monocyte—precursor of macrophage
D. neutrophil—important antigen presenting cell
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Oceanic trenches form primarily where one crustal plate sinks below another
Indicate whether the statement is true or false.
The kidneys are both protected and held in place by cushions of fat. In cases of rapid weight loss, the kidneys may drop to a lower position, possibly causing kinks in a nearby tubular organ. If this happens, urine will back up into the kidneys, severely damaging them. What organ(s) is/are most-likely kinked in this situation?
A. urethra B. renal arteries C. ureters D. renal veins E. nephrons 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 urine flow from the kidney? 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?
Nearly half of the 4,000 placental mammal species are:
a. rodents b. bats c. herbivores d. predators e. hoofed animals
The emergence of many diverse species from a common ancestor that finds itself in a new environment is called
A) adaptive radiation. B) gradualism. C) disruptive selection. D) allopatric speciation. E) hybridization.