2. Climate shifting has caused many populations of organisms to become dispersed and relocate. These organisms now appear in new regions where they have not been seen before. Using an example species, explain what this is called and how it can impact both the species in question and other species in the new area of residence. Is this good or bad for the involved populations? Explain your answer.

The type of physical environment in which a species typically lives is its _______. a. niche b. habitat c. community d. population

The change in the species composition of a terrestrial community from bare and lifeless rock to climax vegetation is called: a. disturbance. b. competition. c. secondary succession. d. primary succession. e. facilitation.

Which is required for a population to evolve? a. genetic diversity b. selection pressure c. gene flow d. none of the above

1. What do the following terms mean?(a) the Community,b) population,c) ecological niche

1) Which of the following defines the niche of a species?   The role of a species in its community as well as the conditions it requires and the interactions it takes part in   All populations of all species in some area   The type of environment in which a species lives   The number of species and their relative abundance within a community   2) Which of the following is an example of a biological factor that can affect community structure?   Tropical regions support a high species diversity by receiving the most sunlight energy.   The high temperatures of desert regions limit which species can live there.   A plant species can live only in regions with a suitable level of rainfall.   An insect herbivore inhibits the population growth of a tree species.   3)Which of the following prey defensive adaptations involves two or more prey species coming to resemble one another?   Camouflage   Startle displays…

11. The following is a list of abiotic factors that would have a micro-effect on a tidal pool (rocky pockets of water where the ocean meets the land). Select the one that would have larger, long-term effects if changed.(1 point) rising water depth water chemistry (pH, pollution, etc.) weather (wind, rain, etc.) temperature   9.  A graph of the total number of species found in an area against the percentage of land under protection would show a/an(1 point) exponential correlation. lack of correlation. positive correlation. negative correlation.

1) Compare the biodiversity indices to one another. State a claim about the effect of pollution on the biodiversity of the stream ecosystem. Describe how the pollution levels affect the species richness and biodiversity of the stream. Justify your claim with evidence. Describe the difference in species richness you observed. Explain how human intervention can change biodiversity in positive ways.

8 Analyze if the following pairs of statements are correct.   Choose: A, if both statements are correct; B, if only the first statement is correct;  C, if only the second statement is correct; or D, if both statements are incorrect.     2a. Population density refers to the number of individuals within a  designated area.   2b. Richness pertains to the number of species present in a specific  location.

7. Behavioral ecology can best be described as ________.   A. responses by organisms that helps others (e.g., increase their fitness)   B. responses by organisms that increase food intake   C. responses by organisms that adversely affect others (e.g., competition)   D. responses by organisms that contribute to survivorship and reproduction   E. responses by organisms that maximize outcrossing