Answer:
Naturally: only during daylight hours
Artificially: all 24 hours (under perfect circumstances)
Explanation:
Photosynthesis can only occur when a plant receives energy from a light source. Naturally, the light source would be the sun which is only around for a certain amount of hours. If the plant is under an artificial light source, like a lamp, then photosynthesis can occur at all hours of the day.
The answer is A because the subject is responding to something that is going on outside of it, if that makes any sense :)
Hope this helps! Have a great day!
Answer:
The correct answer is A chemical reaction between oxygen and glucose during cellular respiration.
Explanation:
All living things obtain energy by the reaction of oxygen and glucose during cellular respiration.The cellular respiration involves 3 major pathways glycolysis,krebs cycle and electron transport chain.
These three important metabolic pathways of cellular respiration result in the oxidation of glucose molecules to generate carbon dioxide,water and ATP.
ATP act as the energy currency of the cell which undergo hydrolysis to generate energy that is used to carry out various cellular and biological processes such as muscle contraction,membrane transport etc.
D- lacks a nucleus.............