If researchers never evaluated the amount of 14C in the atmosphere, they could still use 13C levels to demonstrate causation between human activities and increased atmospheric CO2
A. true
B. false
B
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What is the greatest benefit for carnivores who hunt cooperatively?
a. greater diversity b. division of labor c. defense of territory d. more reproductive options e. efficiency in catching prey
Which two heterotrophic organisms most commonly derive nutrition from endosymbiotic relationships with photosynthetic protists?
1. ciliates 2. slime molds 3. parabasalids 4. reef-building coral animals 5. foraminiferans A) 4 and 5 B) 2 and 4 C) 3 and 4 D) 2 and 3 E) 1 and 2
The genus Arthrobacter has a distinctive growth cycle in which branched rod-shaped bacteria are produced in the exponential phase, and cocci are found in stationary phase cultures.
Answer the following statement true (T) or false (F)
Four of the following are viral diseases. Which one is the exception?
A. Herpes B. Measles C. Bubonic plague D. Hepatitis E. Chicken pox