The 1991 cholera outbreak in Lima, Peru was caused by what?

Which continent is experiencing the most rapid growth mean?

What does zero population growth mean?

Which is the main property that describes population?

The expression that refers to an increase in individuals in an area is known as the...

The study of human population is known as?

What is an ecosystem carrying capacity?

What is the ocean considered as?

The ocean covers about _________% of the Earth's surface.

Where organisms have adapted to keep from being swept away

diverse underwater ecosystems held together by calcium carbonate, some contain algae which go through photosynthesis and some catch zooplankton

The ocean floor, some parts of which get no sunlight, is the

The area that contains the deep water of the open ocean and is where the sea floor drops sharply is the

The place where the ocean meets the land is the

The base of the ocean’s food chains is formed by

Which of the following is NOT a key abiotic factor in marine ecosystems?

Where organisms have adapted to keep from being swept away

A population pyramid represents the age of a population by...

What is a person who moves into a new country to make it home called?

A _______ is a group of organisms that are closely related that are able to reproduce.