A water wave that occurs in an ocean is an example of which type of wave? OPTIONS:
- electromagnetic
- gravitational
- transverse
- seismic
A: transverse

The directions for making a protein OPTIONS:
- result in DNA.
- are carried by DNA.
- result in amino acids.
- are carried by amino acids.
A: are carried by DNA.

A student mixed baking soda with vinegar and observed that the reaction was endothermic. When is a reaction endothermic? OPTIONS:
- when it is reversible
- when it can be repeated
- when it requires heat to make it happen
- when energy is released by the process
A: when it requires heat to make it happen

What travels through the stem of a plant? OPTIONS:
- water and food
- food and nectar
- nectar and soil
- soil and water
A:
water and food