Hydrogen fuel cell powered cars emit ...

oxygen

carbon dioxide

hydrogen

water

Carbohydrates: select one: a. in the form of oligosaccharides are often covalently bonded to proteins and lipids on the outer cell surface, where they serve as cell recognition signals. b. act as a relatively quickly available source of fuel.

How many places are there for electrons in the second shell of an atom? A. 2 B. 4 C. 8 D. 12

Which way would water move. salt water 76% and inside of egg 90% water

Chronic abuse puts the brain on constant high alert and has the potential to produce long lasting changes in the way the brain functions due to overstimulation of the

What is one characteristic that all protists have in common?

Joe, a hiker, stands at the top of a hill on a trail above the ocean. Joe's friend Dave is just starting out at the trailhead, which is at the beach. Which statements about Joe and Dave are accurate? Select three options.

In what way are the structures of dna and protein similar?

Darlene is a 5′ 2′′, 23-year-old woman who weighs almost 250 pounds. to lose weight, she's tried calorie-restricted diets, fad diets, exercise programs, and appetite-suppressing pills without success.

Most people suffering from sleepwalking disorder do not have a family history of this disorder. a. True b. False

For a given species, an increased evolutionary rate would cause a decrease in what