APES 2021

The sequence of the nitrogen cycle is

Which of the following statements about levels of biodiversity is correct?

If Earth's axis was vertical, which of the following would be expected to occur?

About _______ of the solar energy that enters the atmosphere passes through it and reaches the Earth’s surface

Which is NOT a source of heat that changes rock structure?

AFTER a hypothesis is constructed, you would next

Around what percentage of the Earth's atmosphere is nitrogen?

The largest population size a given environment can support

Characteristics of the environment that restrain a population's growth are

The US most closely resembles this stage of development

Which of the following best describes why secondary succession generally occurs more quickly than primary succession?

Volcanoes occur at tectonic plate boundaries that are

In the forest in the Pacific Northwest, you are surrounded by pine trees and it hasn't stopped raining. You are in

Which of the following statements is true of aquatic biomes?

Preferred habitat, position in a food chain, and eating and mating behaviors are all examples of

All energy in a food web originates from ________

The boundary between warm and cold water in an ocean or a lake is called

Which country in the world has the third largest population?

Most water on Earth is in which form?

It is very cold and very dry. You're in Canada, you haven't seen a tree in miles, you are being followed by a moose.

Which of the following would be categorized as a cultural ecosystem service of forests?

A rock that undergoes pressure and heat to form crystals becomes

Which biome has permafrost?

What are two ways a population decreases?

Which of the following biogeochemical cycles is correctly paired with its largest reservoir?

What effect do volcanic eruptions have on the carbon cycle?

Subjects that remain in the original, unchanged conditions in order to provide a baseline comparison are part of the

Rock formed by cooling magma is

Which of the following is an example of an r selected species?

Which of the following is a factor that influences where an organism lives in an aquatic ecosystem?

Birds eat insects on cows. The birds get food while the cows have a pest control service. This is an example of:

If grass produces 1,000 kilocalories, how many calories can we expect a secondary consumer to receive?

The atmospheric layer located farthest from Earth’s surface is the

The __________ is the lowest layer of the atmosphere

An example of the Tragedy of the Commons is:

My hypothesis is that chocolate causes pimples. My independent variable is:

Which stage in the demographic transition has population declined and evened out?

In this stage, the birth rate equals the death rate and has a short life expectancy

What is NOT one of the three forces needed to change a rock type?

An organism's maximum ability to produce offspring in ideal conditions

In this stage, government may begin to encourage immigration due to an older population

The transfer of heat by air currents (or currents in a liquid) is called

Two bird species coexist by feeding on the same type of insects in different parts of a tree.

________ is the process in which the materials of the Earth’s surface are loosened, dissolved, or worn away

Which of the following does NOT influence growth rate of a population?

Which is NOT true of an r-selected species?

The coldest layer of the atmosphere where temperatures have been measured as low as –93º is the

Where does some water from the water cycle collect underground?

Which part of the carbon cycle involves animals breathing in oxygen and out carbon dioxide?

What kind of organisms can be keystone species?

In this stage, death rate declines while birth rates stay high

In this stage, the birth rate begins to decline as education improves

A graph that shows the number of males and females in a population at different ages is called

A gas molecule made of three oxygen atoms that absorbs much of the sun's UV radiation is

A hypothesis is NOT

An island has 250,000 population. There were 12,000 new children born and 10,000 people died. What is the birth rate?

Which of the following is an example of a density independent factor?

The __________ variable is the cause. The ____________ variable is the effect

The narrow layer of Earth where life-supporting conditions exist is called the

The _________________ transition model explains how countries populations change through time.

Which is NOT true of K selected species

Which of the following does NOT apply to humans

Few or no countries are still in this stage

During condensation water changes from a ______ to a ______.

Which process in the nitrogen cycle releases nitrogen gas into the atmosphere?

The amount of energy that flows from a lower tropic level to a higher one is

Factors influenced by the size of the population

You are somewhere in the eastern US. The leaves are changing colors and you just saw a bear. Your are in:

The ability to reproduce is...

What does a population pyramid not tell you?

When a current carrying cold water meets with warm water, the cold water

The lowest and densest layer of atmosphere is the

The layer of the atmosphere that contains almost all of the ozone is the

Surface currents move the north Pacific in a _________ direction

Birds trail ants to feed on insects escaping the ants as they move across the forest floor. This is an example of

Which of the following best describes the movement of energy in an ecosystem?

Which of the following is a primary cause of El Niño climate variations?

One way a local community might regulate a shared and limited resource and reduce the tragedy of the commons is to