Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
100

The five main oceans.

What are the Atlantic, Pacific, Indian, Arctic, and Southern oceans?

100

Systematic approach used by scientists to investigate the natural world.

What is the scientific method?

100

Average measurement of the number of organisms
in a given area.

What is population density?

100

Ecological community or ecosystem type.

What is a biome?

100

Formed by the remains of plants and animals.

What are fossil fuels?

200

To meet the needs of the present without
compromising the ability of future
generations to do the same.

What is sustainability?

200

The three age group categories of dependency.

What are young dependents, economically active, and elder dependents?

200

Forest, Grassland, Desert, Tundra

What are the four major terrestrial biome classes?

200

When all people, at all times, have access to sufficient, safe, and nutritious food.

What is food security?

300

The four layers of the atmosphere.

What are the troposphere, stratosphere, mesosphere, and thermosphere?

300

Policies promoting childbirth.

What are pronatalist policies?

300

First species to colonize new land.

What is a pioneer species?

400

The formula for aerobic respiration.

What is C6H12O6 + 6O2 -> 6CO2 + 6H20?

400

Involves the study of how populations change in size and structure over time.

What are population dynamics?

400

Process that occurs when newly formed or newly exposed land with no species present is gradually colonized.

What is primary succession?

400

Reliable availability of energy sources at an affordable price, taking sustainability into account.

What is energy security?

500

The producer highest in numbers.

What is phytoplankton?

500

The rate at which energy is stored in plant biomass.

What is net primary productivity?

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