List the three main types of optical telescopes, and describe their differences.

What part of a neuron conducts electrical signals away from the cell body?

Frogs reproduce sexually. why do frogs require water to reproduce?

What makes up the majority of plant matter?

A solution that contains equal number of hydrogen and hydroxyl ions would be called

What is organic chemical energy changed into?

A salt is added to a solution of water. Which physical property of the water is most likely to change?

When the moon is between the Earth and Sun it cannot be seen and is called a ___ moon.

Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. this is an example of how protein is used for: a. maintaining fluid and electrolyte balance. b. building antibodies. c.

Identify the fuel that could be classified as a nonrenewable or renewable resource. A) biomass B) geothermal C) wind D) tidal

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enable it to move from the roots to the leaves of plants? a:Water exhibits cohesive behavior.