1 be introduced to a new area 2 spread rapidly in this new area 3 eliminate

1 be introduced to a new area 2 spread rapidly in

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1 be introduced to a new area. 2 spread rapidly in this new area. 3 eliminate native species. Select one: a. 1, 2, and 3. b. only 2 c. only 2 and 3. d. only 3 e. only 1
A J-shaped population growth curve becomes an S-shaped one Select one: a. if the data are plotted on semi-log graph paper. b. if reproduction stops. c. as the carrying capacity is reached. d. as more resources become available. Cheatgrass has been able to invade dry, temperate grasslands and the arid, shrub- dominated habitats (sage-steppe) of North America. Which of the following is NOT a reason for this? Select one: a. Cheatgrass competes successfully with bunchgrasses for water and nutrients. b. All of these are valid reasons. c. Cheatgrass is somewhat fire tolerant. d. Cheatgrass promotes fire frequency and increases fire intensity. e. Cheatgrass is an annual, so there are seeds in the ground ready to grow any year. The population size that a particular habitat can support indefinitely is called the Select one: a. cohort b. carrying capacity c. survivorship level d. intrinsic size Look at the survivorship curves in your textbook. Which of the survivorship curves is/are associated with organisms that have high mortality rates in the early stages of life? Select one: a. Type II b. Type I and II c. Type I d. Type I and III e. Type III Feedback The correct answer is: Type III In the equation for logistic growth, when N = K
Select one: a. population growth stops (is 0).

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