According to the figure, very little ________ is/are used to generate electricity.

According to the figure, very little ________ is/are used to generate electricity.

A) natural gas
B) coal
C) nuclear energy
D) renewables
E) oil

Answer: E

If a nonrenewable resource such as oil suddenly became scarce while demand remained constant, the price of the resource would ________.

If a nonrenewable resource such as oil suddenly became scarce while demand remained constant, the price of the resource would ________.

A) increase
B) move down the demand line
C) decrease
D) move down the supply line
E) remain unchanged

Answer: A

The graph illustrates ________.

The graph illustrates ________.

A) marginal benefit and cost curves
B) the costs of resource use and pollution reduction
C) internal and external costs associated with market economies
D) how price is determined by supply and demand
E) how price falls when demand is high

Answer: D

The intersection of the two lines (the middle of the "X") on the graph represents ________.

The intersection of the two lines (the middle of the "X") on the graph represents ________.

A) the maximum price buyers will pay for goods and services
B) the minimum price buyers will pay for goods and services
C) the maximum quantity of goods and services that a company can produce
D) the minimum quantity of goods and services that a company can produce
E) market equilibrium

Answer: E

Hydrogen bonds connect ________.

Hydrogen bonds connect ________.

A) hydrogen atoms to oxygen atoms within the water molecule
B) oxygen atoms to other oxygen atoms
C) positive regions of one water molecule to negative regions of other water molecules
D) hydrogen atoms to other hydrogen atoms
E) the nuclei of adjacent water molecules

Answer: D

What property of water is due to hydrogen bonds?

What property of water is due to hydrogen bonds?

A) high pH
B) low pH
C) ability to change temperature quickly
D) ability to dissolve lipids
E) ability to form droplets

Answer: E

Why are both ends of each water molecule positive and the middle negative?

Why are both ends of each water molecule positive and the middle negative?

A) Oxygen has a greater pull on the electrons.
B) Oxygen has a greater pull on the protons.
C) The two hydrogens present have a greater pull on the electrons.
D) The two hydrogens present have a greater pull on the protons.
E) Hydrogen bonds create a charge difference.

Answer: A

Within each water molecule, ________ connect(s) two hydrogens to every oxygen.

Within each water molecule, ________ connect(s) two hydrogens to every oxygen.

A) covalent bonds
B) magnetic force
C) hydrogen bonds
D) isotopes
E) ionic bonds

Answer: A

Which community has the highest species evenness?

Which community has the highest species evenness?

A. Community 1

B. Community 2

C. Community 3

D. Community 4

E. All have equal species evenness

Answer: E

The table lists the number of individuals of each species found within four field communities. Which community is most diverse overall?

The table lists the number of individuals of each species found within four field communities. Which community is most diverse overall?

A. Community 1

B. Community 2

C. Community 3

D. Community 4

E. All are equally diverse

Answer: C

Which would not be considered when determining the fundamental niche of a species?

Which would not be considered when determining the fundamental niche of a species?

A. reproductive rate

B. pH tolerance

C. temperature tolerance

D. salinity

E.soil moisture content

Answer: A

Which species would be most vulnerable to environmental changes?

Which species would be most vulnerable to environmental changes?

A. species with a large population

B. niche generalists

C. niche specialists

D. species with rapid reproductive rates

E. species with high genetic variation




Answer: C

Which would least affect the ability of a species to adapt to a new environment?

Which would least affect the ability of a species to adapt to a new environment?

A. population size

B. generation time

C. amount of parental care

D. genetic variation

E. rate of environmental change

Answer: C

Which would result in the highest rate of evolution?

Which would result in the highest rate of evolution?

A. a rapidly changing environment

B. a population with high genetic diversity

C. a long generation time

D. few variations of phenotypes and genotypes

E. drastic changes to the environment

Answer: B

Which pair would most increase the rate of evolution within a species?

Which pair would most increase the rate of evolution within a species?

A. slow environmental change and high genetic variation

B. rapid environmental change and large population change

C. long generation times and low genetic variation

D. large population size and slow environmental change

E. short generation time and small population size

Answer: A

Which is not related to geographic isolation?

Which is not related to geographic isolation?

A. the founder effect

B. A population separated into two by a natural disturbance.

C. allopatric speciation

D. sympatric speciation

E. an island colonized by a new group of birds

Answer: D

A population of rabbits lives in a meadow with depression that runs through the middle. The depression fills in which water and becomes a river that separates the population into two groups. Over a very long period the two populations develop into entirely different species, no longer capable of reproducing with each other. This is an example of

A population of rabbits lives in a meadow with depression that runs through the middle. The depression fills in which water and becomes a river that separates the population into two groups. Over a very long period the two populations develop into entirely different species, no longer capable of reproducing with each other. This is an example of

A. artificial selection

B. mutation

C. sympatric speciation

D. the bottleneck effect

E. allopatric speciation

Answer: E

When a population suddenly reduces in size from habitat loss, natural disaster, or other environmental changes and its subsequent genetic variation is affected, we say it has experienced

When a population suddenly reduces in size from habitat loss, natural disaster, or other environmental changes and its subsequent genetic variation is affected, we say it has experienced

A. the founder effect

B. geographic isolation

C. genetic drift

D. the bottleneck effect

E. mutation

Answer: D

Which process of evolution is not random?

Which process of evolution is not random?

A. mutation

B. artificial selection

C. genetic drift

D. bottleneck effect

E. founder effect

Answer: B

Which is the best example of artificial selection?

Which is the best example of artificial selection?

A. Bees pollinate different species of flowers.

B. Finches adapt to different sources of food on different islands.

C. An isolated population of frogs develops a phenotype distinct from the original population.

D. Humans breed horses for speed.

E. A small population has an unusually high percentage of a rare phenotype.

Answer: D