This is an illustration of the reflex arc.
I think the correct answer is A
It is very interesting how photosynthesis and cellular respiration<span> help each other.</span>
Each organelle, in a cell, works with all of the other organelles to maintain balance, or homeostasis. The organelles have specific functions such as the mitochondria, which create energy, and the ribosome, which translates RNA into proteins. Because these cells work together, the body is able to maintain homeostasis.
D. parasitism
The flea is gaining nutirents but since the dog is being harmed the flea is a parasites
