Duplicate of Env Sys Midterm 2021

Most water on Earth is in which form?

Few or no countries are still in this stage

When a species goes extinct in the wild, but still exists in captivity, it is an example of:

A relationship where one organism benefits, but another is harmed is:

The largest population size a given environment can support

A rock that undergoes pressure and heat to form crystals becomes

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

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

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

Birds perch on rhinoceroses and eat ticks. The birds get food while the rhinos have a pest control. This is...

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

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

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

Energy in a food web originates from:

Which mass extinction is currently underway?

The US most closely resembles this stage of development

You are in the forest in the Pacific Northwest surrounded by huge pine trees and it hasn't stopped raining in days

Which is the most abundant gas in the Earth’s atmosphere?

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

A flea drinks a dogs blood which may end up giving the dog an infection. This is an example of:

What are two ways a population decreases?

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

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

Factors influenced by the size of the population

Characteristics of the environment that restrain a population's growth

Which of the following would start secondary succession?

An example of the Tragedy of the Commons is:

An island has 250,000 inhabitants. Last year, there were 12,000 births and 10,000 deaths. What is the borrth rate?

Using resources responsibly so they will be around for a while is called...

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

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

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

Which human activity would PRESERVE nonrenewable resources?

Which stage in the demographic transition has population decline?

The measure of energy released by an earthquake is called its

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

Which biome has permafrost?

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

Which is NOT true of an r-selected species?

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

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

Where does some water from the water cycle collect underground?

AFTER a hypothesis is constructed, you would next

Which country in the world has the third largest population?

What is the lowest layer of the Atmosphere?

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

A robin that does not affect the tree in which it nests is an example of

Which human activity would most likely deplete nonrenewable resources?

What does a population pyramid not tell you?

Which of the following does NOT apply to humans

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

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

What effect do volcanic eruptions have on the carbon cycle?

The atmospheric layer located farthest from Earth’s surface is ______.

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

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

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

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

Which is NOT true of K selected species

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

The ability to reproduce is...

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

Rock formed by cooling magma is

What kind of organisms can be keystone species?

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

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

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

Volcanoes occur at tectonic plate boundaries that are

Surface currents move the north Pacific in a _________ direction