1. True or False? Plants take up nitrogen from the atmosphere inthe same way that they take up atmospheric carbon.
2. Large animal aggregations such as bird colonies, herds oflarge herbivores, and shoals of fish provide \"safety in numbers\"from predators. As a result, individuals in larger groups havehigher survival & greater rates of reproduction thanindividuals in smaller groups. This represents an example of whichof the following?
A. Positive density dependence
B. Negative density dependence
C. Density independent population regulation
D. None of the above
3. Legumes contain nitrogen-fixing bacteria in their roots thatincrease soil nitrogen for use by other species. This is an exampleof:
A. inhibition
B. tolerance
C. facilitation
D. suppression
