Unit 3/4

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

11

a

13

a

15

a

2

a

20

a

7

a

8

a

1. Which of the following is not true regarding limiting resources?

a. A limiting resource is an important density-independent factor

12

b

14

b

16

b

5

b

3. The common reed is a perennial grass found throughout temperate and tropical regions of the world. Researchers recently discovered that many North American populations od the reeds are composed entirely of genetically identical clones. Which is most likely true of these populations?

b. Evolution by natural selection occurs very slowly in the absence of seed dispersal among populations

10

c

16

c

18

c

19

c

20

c

4

c

6

c

9

c

2. Which of the following is most likely to result in a random population distribution?

c. Density-independent factors

1

d

11

d

13

d

15

d

18

d

6. Which is not a likely

d

8

d

10

e

14

e

17

e

3

e

9

e

5. In an experimental grassland plot, researchers planted 20 seeds of a wildflower species that exhibits exponential growth with an intrinsic growth rate of 0.60. Approximate the maximum population size after 10 years.

e. 20 x e^0.6x10

4. Species with a type III survivorship curve are likely to exhibit I. fast population growth rate II. large amounts of parental care III. density-independent population regulation

e. I and III


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