APES Quiz #3

1.

1 point

Which of the following includes all the others?

community

species

biome

population

2.

1 point

What percent of the incoming solar energy is captured by the green plants and bacteria and fuels photosynthesis to make the organic compounds that most life-forms need to survive

50%

10%

less than 1%

90%

3.

1 point

Nitrate ion

c) NO3-

d) NH3

b) NO2-

a) NH4+

e) HNO3

4.

1 point

Nitrogen gas is converted to ammonia through:

d) assimilation

b) nitrogen fixation

c) denitrification

a) nitrification

5.

1 point

In a food chain dealing with krill eating marine producers, followed by the krill being eaten by a penguin, which in turn is consumed by an orca (killer whale), the secondary consumer is the:

krill

penguin

squid

marine producers

6.

1 point

Ammonium ions are converted to nitrite ions and nitrate ions through the process of

a) nitrification

d) assimilation

c) denitrification

e) ammonification

b) nitrogen fixation

7.

1 point

The two most important factors in climate are

wavelengths or light and atmospheric particulates.

precipitation and pressure.

temperature and insulation.

temperature and precipitation

8.

1 point

The shorter the food chain, the

c) lower the net primary productivity.

d) smaller the gross primary productivity

a) smaller the loss of usable energy.

b) fewer the number of organisms supported.

9.

1 point

When organisms die, their nitrogenous organic compounds are converted to simple inorganic compounds such as ammonia through the process of

b) nitrogen fixation

e) ammonification

a) nitrification

c) denitrification

d) assimilation

10.

1 point

Which of the following ecosystems has the lowest level of kilocalories per square meter per year?

open ocean

savanna

agricultural land

tropical rain forestagricultural land

11.

1 point

A group of individuals of the same species occupying a given area at the same time is called a

c) community

d) genus

b) population

a) species

12.

1 point

Ammonia

a) NH4+

c) NO3-

d) NH3

b) NO2-

e) HNO3

13.

1 point

Ammonium ion

a) NH4+

c) NO3-

d) NH3

e) HNO3

b) NO2-

14.

1 point

A community of living organisms interacting with one another and the physical and chemical factors of their nonliving environment is called

a population

an ecosystem

a species

a biosphere

15.

1 point

Which of the following ecosystems has the highest average net primary productivity?

open ocean

swamps and marshes

agricultural land

lakes and streams

16.

1 point

What is Net Primary Productivity?

is the rate at which produces manufacture chemical energy through photosynthesis

is the rate at which producers use chemical energy through respiration

c) is the rate of photosynthesis plus the rate of cellular respiration

d) is the rate at which energy for use by consumers is stored in biomass

is the rate at which plants and other producers use photosynthesis to make more plant materials

17.

1 point

The cycle most responsible for linking the other biogeochemical cycles is the:

phosphorous cycle

hydrologic cycle

carbon cycle

nitrogen cycle

18.

1 point

Of the following processes, which (work) against gravity?
I. percolation
II. transpiration
III. infiltration

II. only

I. only

III. only

II and III only

I and III only

19.

1 point

The major plant nutrient most likely to be a limiting factor in fresh water ecosystems is

magnesium

phosphorous

calcium

potassium

20.

1 point

The place where an organism lives is its

community

biome

niche

ecosystem

habitat