The basic unite of structure and function in living things

A. nucleus b. menbrane c. Cell

D. Chloroplast

Two objects attract each other gravitationally. If the distance between their centers decreases by a factor of 2, how does the gravitational force between them change? A) The gravitational force remains unchanged.

What does decreasing amplitude do to the shape of the wave?

Critical mass is the ___ of material required to produce a chain reaction. A.) minimum amount B.) atomic mass C.) precise amount D.) maximum amount

Which type of electromagnetic waves have the highest frequency

HOw does water regulate earths temperature?

You have arranged that the magnetic field in a particular region of space is due North with a value of 0.0040 T. An electron enters the field traveling to the West with a speed of 9.5 percent of the speed of light.

If the mass of each ball were the same, but the velocity of ball A were twice as much as ball B, what do you think would happen to the final velocity of each ball after the collision?

Solar cells convert what type of energy into electrical energy?

Which common gas is less abundant in the top of saturn's atmosphere, compared to what we observe at jupiter?

How many atoms are in NaHCO3