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Flashcards in Final (Previous Test Questions) Deck (65)
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1

Genetic drift:
A. Always oppose natural selection
B. Is more significant in small populations
C. Is the result of gene flow
D. Depends on the fitness of the alleles
E. None of the above

B

2

The most comprehensive level of biological organization is the:
A.Ecosystem
B. Species
C. Hierarchal level
D. None of the above

A

3

The gene pool is characterized by:
A. Allele frequencies
B. Mutations
C. Its DNA sequences
D. Mendel’s laws
E. None of the above

A

4

An adaptation is a feature of the organism that:
A. Increases its population size.
B. Increases its fitness.
C. Affects other organisms.
D. Does not include behavior.
E. Does not include morphology

B

5

- Which of the following is not an assumption of the Hardy–Weinberg model?
A. Mating is random.
B.No differential success of genotypes.
C. Population size is finite.
D. No net movement of alleles.
E. No new mutations.

C

6

What is the significance of a population that is in Hardy–Weinberg equilibrium?
A. It is not evolving.
B. Selection and gene flow are in equilibrium.
C. Each genotype occurs in equal frequency.
D. The values of p and q are equal.
E. None of the above.

A

7

Resistance to pesticides:
A. Is an example of gene flow.
B. Arises by genetic drift.
C. Is the result of long-term changes in the pesticide.
D. Depends on mutations.
E. None of the above.

D

8

- Behavioral thermoregulation:
A. Is most important in homeotherms
B. Is an example of aestivation
C. May include basking
D. Never occurs in poikilotherms
E. None of the above

C

9

The excretion of nitrogenous wastes involving a trade-off between:
A. Solubility and energy content
B. Solubility and toxicity
C. Toxicity and matric potential
D. Toxicity and metabolic water
E. None of the above

B

10

Which of the following is not a cost of migration?
A. Higher mortality
B. Energetic demands
C. Predation
D. Negative social interactions
E. None of the above

D

11

-The principal of allocation states that:
A. Energy is allocated, but other physical resources are not
B. Fitness is highest when all energy is allocated to reproduction
C. Fitness is highest when all energy is allocated to survival
D. Some adaptations preclude others
E. None of the above

D

12

- The law of tolerance states that:
A. Physical factors are always tolerated.
B. There are limits to the physical factors organisms can tolerate.
C. The higher a species’ tolerance, the more successful it is.
D. Physical resources are more important than physical factors.
E. None of the above.

B

13

Arctic tundra has low seasonal variation in temperature.
- True
- False

F

14

- Day length and temperature change with latitude because:
A. Sunlight strikes the equator at a 90* angle.
B. Of the tilt of the earth’s axis.
C. Of the west-to-east rotation of the earth.
D. Of north-and-south-facing slopes.
E. None of the above

B

15

What is the significance of the Wallace’s line?
A. Boundary between two distinct biomes
B. Delineation between two distinct biogeographical realms
C. Line between the tropical savanna and tropical rainforest
D. The location of the Panama Canal
E. None of the above

B

16

Many deserts are found at 30*N and 30*S because:
A. Most mountain ranges are located at those latitudes
B. Solar radiation is most intense there
C. Cool air rises in these regions
D. Warm, dry air returns to the earth’s surface there
E. None of the above

D

17

- Which biome are we in right now?
A. Temperate grassland
B. Tropical forest
C. Temperate deciduous forest
D. Conifer forest
E. Tundra

C

18

- Some parts of the Earth receive more total hours of daylight over the course of a year than others.
- True.
- False.

F

19

- Pick the two primary drivers of biome type.
A. Continent and altitude.
B. Continent and precipitation.
C. Altitude and precipitation.
D. Temperature and precipitation.
E. Continent and temperature

D

20

Drip tips, epiphytes, shallow root systems and buttressed trunks are all characteristics of which biome?
A. Deserts.
B. Temperate deciduous forest.
C. Boreal forest.
D. Tropical rainforest.
E. None of the above.

D

21

A fourth order stream is formed when:
A. Two second-order streams join
B. A first-order and third-order stream join
C. Two third-order streams join
D. Two fifth-order streams join
E. None of the above

C

22

- What factors influence oxygen along the river continuum?
A. Temperature
B. Photosynthesis
C. Reaeration from the atmosphere
D. Respiration
E. All of the above

E

23

- Lakes become stratified:
A. Because waters of different density tend not to mix
B. The thermocline disappears
C. The epilimnion lies above the hypolimnion
D. Oxygen is limiting

A

24

Ocean acidification is affecting the biological pump by...
A. Increasing the amount of HCO3 for algae.
B. Decreasing sinking rates of calcified phytoplankton.
C. Decreasing abundance of some species in the pelagic food web.
D. All of the above.

D

25

- Which of the following do not help to define heritability in the narrow sense?
A. Additive genetic variance.
B. Dominance.
C. Environmental variation.
D. Selection.
E. None of the above.

B

26

Bateman’s principle states that:
A. Males experience greater variation in reproductive success than females
B. Females experience greater variation in reproductive success than males
C. Males and females reproductive success must be equal
D. Heritability of male traits is higher than for female traits
E. None of the above

A

27

Purely monogamous systems:
A. Do not occur in nature
B. Are characteristic of lek species
C. Cannot be proven
D. Require no parental care
E. None of the above

E

28

Polygyny is more likely to occur when
A. Females are widely scattered.
B. Males outnumber females
C. Critical resources are defensible
D. Males live longer than females
E. None of the above

C

29

- Which of the following characteristics are required to define an evolutionary population?
A. A group of individuals that occupy a defined area and the boundaries determined by barriers to gene flow and mating.
B. A group of individuals that mate at random and the boundaries determined by relevant environmental changes.
C. A group of individuals that occupy a defined area and the boundaries determined by relevant environmental changes.
D. A group of individual that mate at random and the boundaries determined by barriers to gene flow and mating.
E. All of the above

D

30

Sexual dimorphism is likely to evolve when:
A. Males experience greater variation in reproductive success than females
B. Females experience greater variation in reproductive success than males.
C. Male and female reproductive success must be equal.
D. Heritability of male traits is higher than for female traits.
E. None of the above

A