Small viruses started as runaway pieces of nucleic acid that originally came from living cells such as bacteria.

True or false

What would be the appropriate measure to record the length of a car?

An ice cube melts and becomes a liquid. What happened to the particles that made up the ice cube? A. The mass of the ice cube's particles decreased. B. The amount of potential energy in the ice cube's particles increased. C.

What use proteins to diffuse materials across the cell membrane?

A push or pull is called a force. Unbalanced forces can cause objects to move in many ways but not to

In pea seeds yellow color is dominant to green color and a round shape is dominant to a wirkinkled shape a dihybrid cross between a true breeding plant with yellow round seed and a true breeding plant with green wrinkled seeds results in an F1

What can cells can be defined as

What brings greater concentration of dissolved nutrients to the ocean floor?

The power was off last night, and the yeast cultures in your incubator cooled down from 25 degrees to 20 degrees centigrade in temperature. to your great relief, you find that the yeast cells did not die.

Which of the following is a way that human modification of limiting factors causes unbalance in ecosystems? a. habitat loss b. pollution c. climate changes d. all of the above

What form is carbon in the atmosphere?