Pentathlon Science 1

Animals lacking a backbone are called

Non-living resources from the ocean include all but

The overgrowth of algae as a result of agricultural runoff is known as

Introduced species that cause damage to an ecosystem are called

Ocean divisions are based on distance from the land, water depth and

The ocean is composed of

Marine biology is

Which of the following in NOT a major geochemical cycle in the ocean?

Marine biology is studied using what process?

Human rely on

Organisms that can create their own food are called

Early exploration of the ocean was acheived through

Non-living components of an ecosystems are called

Coral reefs are large geological structures made of

The Earth is 4.5 billion years old, but the ocean are only

The most widespread pollunant in the ocean is

Plankton are classified as

Water covers what percentage of our planet?

What has shaped the oceans and continents for millions of years?

The scientific study of how organism interact with the environment is called