All living things use nitrogen to A) reproduce. B) make sugar. C) make proteins. D) transport water.

Respiratory system individual parts

What does it mean when a compound's chemical formula does not include any numbers? A. There are only single bonds in the molecule. B. There is only one atom of each element. C. All the atoms have double bonds. D. The molecule does not have any bonds.

The rock cycle is a continuous process that changes materials found in a. both earths lithosphere and mantle. b. only in earths lithosphere. c. only earths mantle. d. in neither the Earth's lithosphere nor the Earth's mantle.

What are four ways that humans harm sea grass? explain in detail.

What part of the brain is likely to not be working correctly if a person is blind, but has eyes that are not damaged in anyway?

Which layers of sedimentary rock at Grand Staircase Escalante National Monument do you think are the oldest?

Animals in the higher trophic levels generally share two characteristics. They are typically

Name two ways that carbon enters the atmosphere

Omid is spending the semester in England where the road signs are in km. If he drives from his school into a town 6mi away, how many km will he drive?

During the light independent reaction of photosynthesis, light energy is converted to the energy currency of ALL cells. This energy-carrying molecule is needed to produce glucose. This molecule is