They most likely uses a sample and a microscope to see.
Answer:
B) plants absorb energy from sunlight
Explanation:
Plants use energy from the sunlight to synthesize foods from carbon dioxide and water
It does not belong to a food group if it contains sugar it then for just has calories
Usually during exercise, unlike during rest times the muscle cells need to respire more. So they need more oxygen and glucose for energy and the carbon-dioxide produced as waste must be removed quickly. So when person gets tired or breathes heavily during intensive workouts means they are in need of more oxygen. So the cells starts performing anaerobic(lactic acid ) respiration even though it releases less energy.
Answer:
50%
Explanation in photos bc apparently my answer had links or curse words
