When does oxygen become part of the cellular respiration

If an object appears green what color is being reflected

Which of the following examples describes an increase in potential energy? A: a bicycle going down a hill. B: a basketball falling through a net. C: a roller coaster moving down the track D: a paint can being carried up a ladder

A girl found the skull of an animal. She didn't know what the animal was, but she was sure it preyed on other animals for its food. What could have led her to this conclusion?

What process if responsible for plants growing towards the light

96% of marine animal species became extinct in the permian mass extinction at the end of the paleozoic, 251 million years ago. why does the blue curve show only a 50% drop at that time

How long does gunpowder residue remain on a shooter's hands? A few hours About 24 hours A few days About a week

Why are some planets made of frozen gases and others solid?

The skin is the primary organ of the

What is true for urochordates? A. The notochord is present throughout their lives. B. The notochord is present only in the larval stage; it is absent in adults. C. The notochord is present in the larval stage; it becomes vertebrae in adults.

What term is used to refer to a characteristic of a population in statistics?