The factor being changed in a controlled experiment is called the

Waste and chemicals destroying the natural ecosystems of the planet

Why are fossil fuels a relatively short-term source of energy

Name a serious disease caused by protozoa

Which of these organisms is not correctly matched with its role in an ecosystem? A. Oak trees are considered producers. B. Deer are considered primary consumers. C. Mushrooms are considered secondary consumers.

Expansion joints are spacesbuilt into structures' a. to prevent damage from thermal expansion. b. to prevent thermal expansion. c. to stop particles from moving.

What is back and faward movement (Ear and sound)

The normal pacemaker of the heart is the

How do daughter cells get their dna

The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.

What is a cost of using technology to transport water?