What cells in the body release the chemicals that cause allergic reactions?

Natural resources are materials from the earth and are either renewable or nonrenewable. Some of these resources are recoverable after their first use. An example of resource recovery

Which property of water allows some lightweight insects to walk on top of a pond and not fall in

What part of the brain controls muscle coordination?

Which of the following is true for the conservation laws of matter and energy? A. The sun plays a critical role. B. The nitrogen cycle is a good example. C. Earth is a nearly perfect closed system. D. The total amount of something remains the same.

Mr. Whatsit received the lifesaving valve replacement surgery. Describe the changes you expect to see in his vital signs. Additionally describe the changes you expect to see in both his respiratory and kidney functions.

True (bubble A) or False (bubble B) : Mutations caused by UV light will favor mutations that cause changes to protect the cell from UV light

Cartilage is part of the skeletal system. True False

Which is made up of organic molecules? copper electrical wires plastic storage containers table salt antacid

How does nitrogen leave a food chain? A. Primary consumers eat nitrogen-containing green plants. B. Producers absorb nitrogen-containing nutrients by their roots. C. Decomposers break down nitrogen-containing waste material from primary consumers. D.

Diffusion is important for living organisms because ...