Why is the human heart NOT considered to be a living organism A. it cannot complete photosynthesis. B. it cannot reproduce itself. C. it is not made of cells. D. it does not reguire oxygen.

The phases of the moon are caused by the sun is wearing distance from the moon moon's revolution around the earth moves very distance from the earth

2. Why do you think soils are thicker in a valley?

Name the largest creature on earth.

Which of the following may add salt to the ocean waters

According to the article on snakes, what unique characteristic has led scientists to study the paradise tree snakes of South Asia? A. their venom can cure cancer B. they can fly through the air C. they can swim in the ocean D.

A science class tested ways to clean water after an oil spill. Each group of students was given 100 mL of vegetable oil, 100 mL of engine oil, and 800 mL of water in a rectangular plastic container.

How does the flow of energy from earth's hot interior drive the formation of igneous rocks?

Which of the following describes an aquifer's ability to allow water to flow through? A. porosity. B permeability. C geology. D recharge zone.

What is the main molecule In Carbohydrates and lipids and proteins and Nucleic acids?

In a songbird species, defending a territory saved the bird 584 calories a day in reduced foraging activity, but cost the bird 656 calories in defense of the territory.