Ch. 3 Review: Ecosystems and How They Work

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

"Too much or too little of any abiotic factor can limit/prevent growth of a population."

The law of conservation of matter states that

The variation within a population

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

All organic compounds contain which element?

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

Highest consumer in a food chain

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

Which two processes drive the biological carbon cycle?

How is denitrification different from nitrification?

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

Which biological process converts atmospheric carbon into organic molecules?

Which of the following describes transport in the hydrologic cycle?

A typical food chain has an ecological efficiency of _______.

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

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

How is the phosphorus cycle different from other biogeochemical cycles?

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

21% of the atmosphere is _______________.

Which of the following is NOT a large carbon storage reservoir

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

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

The smallest, most fundamental unit of life 

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

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

The study of connections in nature

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

Carnivores get the majority of their usable nitrogen compounds by

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?

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

Which biological process converts organic molecules into atmospheric carbon?

Which of the following are natural sources of sulfur?

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

The idea that all living things are composed of cells

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