By a currently favored hypothesis, species richness of a community is greatest when physical disturbances are of_____ intensity and frequency. a. low c. high b. intermediate d. variable

A recent United Nations analysis report gathered data on declines in biodiversity across the world. Using the graphs provided, which statement shows an area of concern and is an alternative to the general hypothesis "Humans are responsible for a significant increase in the extinction rate among species in the world today as a result of damage caused to the environment"?   A. Fertilizer use in developing countries should be encouraged to decrease the extinction rate   B. Decreasing air pollution in the least developed countries would decrease species survival rate   C. Protection of key biodiversity areas should be a priority for developed countries to lower the extinction rate   D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival rates

a black bear accidentally stepped on a ladybug beetle, and the beetle survived. What type of ecological species interaction is this? a. amensalism b. commensalism c. neutral d. it is not a species interaction, because this incident does not affect the fitness of bears or ladybug populations  e. the answer depends on whether that ladybug's fitness is affected negatively

The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US. However only 5 million acres now remain causing major declines in the Gopher tortoise population. Given this, what is expected to happen to overall diversity of species that depend on Gopher Tortoise burrows?a. increaseb. decreasec. stay the same