Which statement best describes a scientific question A) It must be based on a hypothesis B) it must be supported by data. C) it must be testable. D) it must be original

What impact would the melting of the greenland glacier have on sea level

Which is true for both photosynthesis and cellular respiration? a. They are simple chemical reactions. b. They are complex chemical reactions. c. They require light energy from the sun. d. They require cells to use water.

the illustration shows a girl. pushing on a heavy box she pushes with a force of 40 N. how can you detwermine if she is doing work on the box?

There is a car moving 55 MPH. The car is passed by a motorcycle that is moving at 80 MPH. What is the relative speed of the motorcycle from the perspective of the moving car?

The accumulation of serous fluid in the scrotal sac is called

When does a wheel and axle have a mechanical advantage greater than one?

What do cells need to do between divisions to make sure that a full set of dna gets passed on to each daughter cell?

True or false: The central nervous system allows us to sense the environment

Which of the following statements is false regarding root hairs? a. they are outgrowths of endodermal cells c. they increase the surface area of the root b. they are outgrowths of epidermal cells d. they absorb water and nutrients

Why is it critical to divide the chromosome number in half?