Quiz: Chapters 24 & 25

The Copperband Butterflyfish is native to the South Pacific waters of Indonesia. It has mauve stripes that run vertically across its body, and a snout that is tapered to a point for reaching food sources in-between crevices. Some species of blenny (a type of fish) benefit from consuming the excrement of this fish as well.

1. The niche of the Copperband Butterflyfish can be considered:
1. Its location in the South Pacific waters of Indonesia
2. The vertical stripes across its body
3. Its pointed snout that is capable of reaching food sources between rocks
4. Its contribution to the blenny

2. The relationship between the Copperband Butterflyfish and the blenny is known as ___________.
1. Commensalism
2. Mutualism
3. Parasitism
4. None of the above

3. Another fish is introduced into the same habitat as the Copperband Butterflyfish. It too has a long, pointed snout, but instead of mauve stripes, it has black stripes. According to the competitive exclusion principle….

a. Both species must interbreed in order to succeed in the habitat

b. One species will eventually replace the other

c. Both species will coexist peacefully, with minimal competition because of their difference in coloration.

d. The newly introduced fish will develop a commensal relationship with the Copperband Butterflyfish

4. Which of the below is NOT an example of a step in the carbon cycle?

a. Gasoline being used in an automobile

b. The Krebs Cycle in a Eukaryotic cell

c. Exhalation of Carbon Dioxide by a human being

d. A flashlight running on AA batteries

5. A species of plant is mat-like, compact, and has very short roots. Although its environment receives very little precipitation, a layer of ______ keeps the soil saturated with water. This species is adapted to live in the ______.

a. Permafrost; tundra

b. Ice; taiga

c. Rock; desert

d. Detritus; benthic zone

6. Which of the following is not an biotic limiting factor?

a. Food

b. Bacterial Infection

c. Space

7. Which of the following is not a characteristic of competition?

1. benefits neither organism
2. struggle to obtain the same resources
3. results from not enough organisms in an environment
4. compete for space, sunlight, water, and food

8. N2 is converted into ammonia by________.

a. bacteria

b. viruses

c. humans

d. plants

9. In which type of symbiosis do both organisms benefit?
1. mutualism
2. parasitism
3. commensalisms

10. Doubling time is ____
1. The time it takes for a given population to double in size
2. The time it takes for a given plant to double in size
3. The time it takes for a given animal to double in size
4. The time it takes for a given population to half in size

11. How many calories would a secondary consumer have in its trophic level if

the producer had 5500 calories in its trophic level?

a) 4950 calories

b) 55 calories

c) 550 calories

d) 5 calories

12. What is an example of a biotic resource?

a)trees

b)water

c)sun

d)minerals

13. The first part of the heterotroph hypothesis is...

a)polymers self-replicating in a RNA world

b) chicken produces an egg

c) organic compounds combine into polymers

d)produce organic compounds from non-biological processes

14. Two birds are crossed. One bird has 2 wings and is heterozygous

dominant. The other bird is homozygous recessive and has 1 wing. What is

the probability that two offspring will have only 1 wing each?

a) 1/2

b) 1/4

c) 1/16

15. Which are types of limiting factors?

A) temperature

B)wind

C)humidity

D) all of the above

ANSWERS

1. c

2. a

3. b

4. d

5. a

6. c

7. c

8. a

9. a

10. a

11. b - because of the 10% rule.

12. a

13. d

14. b - 1/2 * 1/2 = ¼

15. d