6th Grade
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7th Grade
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8th Grade
100

The body's ability to resist a particular disease.

immunity

100

Largest group of mammals.

rodents

100

Organisms' occupation within its environment.

niche

100
The calendar that has leap years every four years with no exceptions.

Julian calendar

100

Darwin based his evolutionary ideas on this

Natural Selection

200

Drugs that relieve pain without causing numbness.

analgesics

200

An environment and all its organisms.

Ecosystem

200

Jelly-like substance found in the cell.

cytoplasm

200

Type of disease caused by a pathogen.

infectious

200

Technique used to dramatically increase the resolution of radio telescope images by combing signals from multiple telescopes

interferometry

300

"Control Center" of the cell

nucleus

300

Part of the brain that controls thinking, reasoning, and memory.

Cerebrum

300

Several years ago, a nearby ecosystem was damaged. Since then, however, a new ecosystem has developed.  This is the process that occured.

ecological succession

300

Type of orbit crosses the equator at the same local mean solar time on every orbit.

sun-synchronous orbit

300

The convection cell that exists between latitude 30 and latitude 60

Ferrel cell

400

This gland is known as the "master gland"

pituitary gland

400

Largest organ; the body's first line of defense against disease

The Skin

400

Protozoa that move using long, whip-like structures.

flagellates

400

The Father of Anatomy

Andreas Vesalius

400

Group of biogeochemical cycles recylce nutrients found in soil and rock

sedimentary cycles

500

Substances your body needs in order to function properly

nutrients

500

"wires" of your communication system

nerves

500

Classification that describes an organism's feeding relationship with other organisms.

Trophic level

500

Nutrients are supplied to cells, and wastes are removed from cells by this system.

cardiovascular system

500

Group of long-living halogen compounds are supposedly the primary cause of ozone depletion.

chlorofluorocarbons

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