Isotopes that give off energy and emit particles are known as ________
Fill in the blank(s) with correct word
radioisotopes
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A group of functionally related genes transcribed as a single transcriptional unit under the control of a single promoter is referred to as a(n) ____
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The classic work of Huffaker demonstrated that orange-eating mites were able to survive predation by "mite-eating" mites provided that:
A. the starting size of the orange-eating mite population was large compared to that of the mite-eating mites. B. the starting size of the mite-eating mite population was below a certain threshold. C. the orange-eating mites were provided with ample food sources. D. the orange-eating mites had access to "refuges" where they were safe from predation. E. the mite-eating mites had access to "refuges" where they were isolated from parasites that infected orange-eating mites.
Both Echinodermata and Chordata fall under the supergroup Deuterostomia. What primitive gut tube structure defines the Deuterostomes?
a. embryonic mesoderm b. enterocoelom c. archenteron d. blastocoel
What hypothesis were Ellison and Gotelli testing when they manipulated concentrations of nutrients available to pitcher plants?
A. Providing extra light would increase the need for nutrients. B. Cutting leaves would diminish the need for more nutrients. C. Providing extra nutrients would reduce the need for extra leaves. D. Providing extra nutrients would increase photosynthetic leaf surface area. E. Providing extra light would increase leaf production.