These young organisms feed on the abundant algae that grows on the rocks of the pool. In this aquatic organism, death among the young is due to heavy predation until the young become too large to be trapped by the predator, a small fish. On the graph above, draw a line which would depict the cohort if the predatory fish were removed from the pond. In an ecology study of a dry desert area, the question has been posed that ants and mice are competators for the seed crop which is produced each spring during the spring rainy season. Ants are able to feed in the day time in the heat, but mice eat only at night to avoid the intense heat.
Seeds fall into roughly two types, large and small.
The following experiment was performed. Four plots were staked out which were for all intents and purposes alike in every way. In plot one, both mice and ants were removed. In plot 2, only ants were removed, in plot 3 only mice were removed and in plot 4 ants and mice were allowed to continue with their normal relationship. For questions a through d use the information above.