Answer:
Heart rate goes up, breathing gets labored
Explanation: heart using more blood to work, and then the heart needs more oxygen to work so it forces u to breathe more
Hope this helped!
Answer:
The correct answer is - it obtains electrons from the oxygen atom in a water molecule, so it must have a stronger attraction for electrons than oxygen has
Explanation:
P680 known as which contains a reaction center in photosystem two, it is a very strong oxidizing agent that catalyzes the transfer of electrons from H2O to a bound quinone, with the production of O2.
To have a stronger attraction for electrons than oxygen has, P680 gets electrons from the O2 atom in a water molecule.
2 and 3 Becuase both undergo photosynthesis, which is only a think plants do. Hope this helps.
Stimulus - you move your hand over a hot flame
Response - you quickly pull your hand back
