APES Ch. 3 Review: Ecosystems and How They Work

All organic compounds contain which element?

Which pollution source releases pollutants containing nitrogen, carbon, and sulfur?

Which of the following are natural sources of sulfur?

The part of the atmosphere that contains the majority of the air that we breathe.

The variation within a population

Compared to the amount of nutrients,like carbon, on Earth when it was created, today there are.

How is denitrification different from nitrification?

A _________________ cell has a membrane and DNA/RNA, but no other internal parts

End products of anaerobic respiration (aka fermentation) can include all the following execpt

Producer creates 5,000 cal of available energy. How much will the secondary consumer receive?

In __ respiration, producers use sulfur/nitrates/sulfates instead of O₂ to break down glucose

Ozone layer is super important, why?

A group of individuals of the same species that live in the same place at the same time.

A typical food chain has an ecological efficiency of _______.

Which of the following describes transport in the hydrologic cycle?

Highest consumer in a food chain

The idea that all living things are composed of cells

A set of individuals that can mate and produce fertile offspring.

Nitrogen gas is found in the atmosphere. How does it enter plants?

The majority (78%) of the atmosphere is __________ gas.

The smallest, most fundamental unit of life 

A _______________ cell is surrounded by a membrane, has a nucleus, and contains organelles.

How is the phosphorus cycle different from other biogeochemical cycles?

Which of the following is NOT involved in the nitrogen cycle?

Carnivores get the majority of their usable nitrogen compounds by

Which biological process converts atmospheric carbon into organic molecules?

Which of the following is NOT a large carbon storage reservoir

The study of connections in nature

Consists of all the populations of different species that live in a particular place

Producer contains 13,500 units of available energy. How much does a tertiary consumer receive?

What happens to high quality energy in ecosystems?

All matter cycles, what is unique about the phosphorus cycle compared to others?

Which two layers of the atmosphere play a key role in our existence?

Which two processes drive the biological carbon cycle?

The other 1% of air is composed of greenhouse gas which include all of the following EXCEPT

The law of conservation of matter states that

There are approximately _______ KNOWN species currently documented in the Encyclopedia of Life.

21% of the atmosphere is _______________.

Humans’ release of excess phosphates into lakes and rivers can result in

Which biological process converts organic molecules into atmospheric carbon?