Why is the blood that flows from the lungs toward the heart a brighter red then the blood that flows the other direction

How is the process of photosynthesis central to substancing life on earth?

Sprinting is a sport that requires an explosion of energy more than endurance. the best type of muscle fibers for this activity would be

Which of these elements is rarely found in organic molecules?

Vaccines can be made from dead or weakened viruses. Vaccinated individuals become protected against diseases because the dead or weakened virus a. stops further viral invasion. b. causes the production of antibodies. c. are too weak to cause illness.

faraday's law states that voltage is changed when the coil is rotated in a magnetic field. a. true b. false

What is a controlled experiment? A. An experiment that uses carefully controlled conditions B. An experiment that is performed inside C. An experiment that has no manipulated variable D. An experiment that is controlled by a company

Which is more numerous, the amount of microbes or the amount of people

Which type of cell is created during meiosis? A) skin B) liver C) blood D) sperm

What is the purpose of a reserve?

In which organelle are the lipid components of the cell membrane assembled