Answer: cell tissue organ and organ system.
Explanation:
Answer:
Lichens are not purely mutualistic relationships.
Explanation:
I'm not certain on the reason it happens, but it can be lethal by stopping the heart from beating and, the lungs from contracting and expanding causing death by suffocation or cardiac arrest, also putting the body into shock.
A psychologist would say that she enjoys the game because it acts as a reward for her. When she wins or is good at a game this means she is receiving different signals which act in a rewarding way towards her.