A source from which organisms generally take elements is called a/an

A. biotic community.

B. food web.

C. exchange pool.

D. reservoir.

Why do footballers need power?

Which of the following clocks is the most precise

What does the Drake equation allow us to estimate?

A crane motor exerts 3,500.0 W to lift a load up 5 floors in 25.0 seconds. The crane did how much J of work.

Why do we need the periodic table? First to answer get brainless!

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?

What causes the stars to appear to move across the night sky?

Two waves collide and the temporary combined waves that results is smaller that the original wave. which term describes this interaction? A. destructive interference B. standing wave formation C. diffraction D. constructive interference