A dog breathes out CO2 and a tree releases O2. How are the dog and the tree connected in the oxygen cycle?

A substance with a hardness of 8 will scratch a substance with a hardness of 7. True False

Tom needs to load a tire into a moving truck using an inclined plane. he has two boards-one that is 6 feet long and another that is 12 feet long. tom wants to use the board that will allow him to push the tire into the truck with less effort force.

What is one challenge of biology right now?

Name a producer in the food web to the right

What is the most canned drinks opened by a parrot in one minute

How will the changes to the hydrosphere affect the atmosphere, geosphere, and biosphere?

What is used to increase the extensibility of soft tissues through both autogenic inhibition and reciprocal inhibition?

Why is the cohesion of water important to life on this planet?

Very low concentrations of detergent make membranes leaky to small molecules and ions without damaging proteins. In isolated mitochondria exposed to detergent, the molecules of the electron transport chain and of ATP synthase remain intact.

A ball is traveling at a constant speed around the inside of a circular structure. is the ball accelerating?