Having paired structures so that the right and left halves are mirror images is referred to as:
1.bilateral symmetry
2.cephalization
3.coelomate
4.pseudocoelomate
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The agency that has published guidelines known as Standard Precautions to reduce the risk of disease transmission in laboratories is:
a. DHEC. b. OSHA. c. CDC. d. EPA.
Protection of which of the following would least protect the brain from physical trauma?
1.dura mater 2.pia mater 3.arachnoid mater 4.skull
Oxygen concentration generally plays an important role in regulating respiration:
a. all the time. b. never. c. only when the carbon dioxide concentration falls markedly. d. only when the oxygen concentration falls markedly. e. only when the pH falls markedly.
Answer the following questions true (T) or false (F)
1. Ecological dominants are typically the top predators in a community. 2. A community is a more inclusive category than a population. 3. Communities with the most biodiversity are found in areas with low geographic diversity.