Cells that release chemical mediators in both inflammation and allergy are the __________ cells
a. mast
b. neutrophils
c. eosinophils
d. dendritic
e. lymphocytes
A
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Methane is usually released directly to the atmosphere in environments without an overlying ________ water zone.
Fill in the blank(s) with the appropriate word(s).
Hydrothermal vents allow organisms to live in ____
a. the open ocean b. the intertidal zone
c. the deep sea d. the kelp forest e. coral reefs
Cohesion rings hold the replicated DNA/sister chromatids near each other and at the transition between metaphase and anaphase:
a. securin becomes active and breaks the cohesion ring b. securin becomes active and degrades separase c. securin becomes degraded and activates separase. d. anaphase promoting complex is active and degrades securin. e. two of the above.
According to the diversity-stability hypothesis:
A. A loss of any species from an ecosystem leads to an approximately equal decline in stability. B. Losing even a few species from an ecosystem causes a drastic decline in ecosystem stability. C. The loss of a few species from an ecosystem does significantly affect ecosystem functioning. D. Every species has an important role in ecosystem function, but we cannot predict the effect of species loss. E. Genetic diversity is the most important part of ecosystem stability.