Clicker quiz!Have your clickers ready!

Is this thing working?

1 2 3 4

21%

49%

26%

5%

1. Could be2. Maybe3. Hope so4. Kitty!

1. Which of these statements about mutations and evolution is true?

1 2 3

0%

95%

5%

1. Mutations have no effect on survival.

2. Mutations are caused by natural selection.

3. Mutations are random and may be good, bad, or neutral.

2. Evolutionary fitness means:

1 2 3 4

0% 3%0%

98%1. Being bigger and stronger.

2. Having more offspring.

3. Gathering more food.

4. Living longer.

3. What is true about variation of particular traits in a population?

1 2 3

0%9%

91%1. Variations are

harmful. Only perfect forms survive.

2. Variation is normal, and is caused by minor mutations.

3. Variations are never inheritable, so they do not cause evolution.

4. In logistic population growth, the population levels out at:

1 2 3 4

5% 2%5%

89%1. The population ceiling.

2. Carrying capacity.

3. Environmental cap.

4. The death rate.

5. Which is an abiotic factor controlling population growth?

1 2 3 4

5% 5%

86%

5%

1. Predation2. Disease3. Climate4. Competition

6. The human population is experiencing:

1 2 3 4

7% 5%0%

89%1. Logistic growth2. Exponential

growth3. Carrying

capacity4. A population

bottleneck