Physics
Life Science
Biology
Marine Science
100

A device that either multiplies or redirects a force.

What is a simple machine?

100

The smallest unit of life in creation.

What is a cell?

100

The study of living organisms.

What is biology?

100

Organs for taking oxygen from water.

What are gills?

200

A rate at which an object moves.

What is speed?

200

A method of sorting things according to shared qualities or characteristics.

What is classification?

200

Consisting of a single cell.

What is unicellular?

200

A community of organisms that interact with each other and their physical environment.

What is an ecosystem?

300

The speed of an object at a given direction.

What is velocity?
300

The process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food.

What is photosynthesis?

300

Consisting of more than one cell.

What is multicellular?

300

A close living situation between 2 species where at least one of the species benefits.

What is symbiosis?

400

A push or pull exerted on an object in an effort to change that object's velocity.

What is force?

400

An organism that breaks down the dead remains of other organisms.

What is a decomposer?

400

Organisms that obtain their nourishment from dead organisms.

What are saprophytes.

400

The production of visible light by living organisms.

What is bioluminescence? 

500

A closed path through which electric current flows.

What is an electric circuit?

500

The first criterion of life is that all living things contain hereditary information in their ______ which enables life to continue through reproduction.

What is DNA?

500

Provides either controlled or uncontrolled movement in the body.

What is muscle tissue?

500

Echinoderms' bodies are designed with a base of how many radiating parts?

What is five?

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