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

A. exchange pool.

B. food web.

C. reservoir.

D. biotic community.

answered|Score. 8

An electron in the highest occupied energy level of an atom is called

True or false a 6 volt battery has a greater electric potential difference than a 1.5 volt battery

Which energy transformations occur when a candle burns?

Which waves require a material medium for transmission? a.) light waves b.) radio waves c.) sound waves d.) microwaves

Which property of the isotopes must be different? A. The atomic number B. The electric charge C. The element name D. The mass number

Woman pulls a 6.87 kg suitcase, initially at rest, with a 29.2 N force along the handle at 57.7º. Friction pulls back at 12.7 N, and the suitcase moves 5.93 m. What is its final speed? (Unit = m/s)

Suppose you know a golf ball's horizontal velocity and the time it has traveled through the air. how could you calculate how far the ball traveled

What is a radio interferometer? a device for correcting chromatic aberration in radio telescopes a device for absorbing and transmitting radio waves a network of several radio telescopes wired together a radio communication network joining several

In which galaxy is our solar system located? a. milky way b. ngc 4414 c. andromeda d. small magellanic cloud

Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m