Gas exchange
transportation
Supplying the blood with oxygen (which can then be transferred to the cells ), and cleaning it from CO2 ( carbon dioxide ). Or simply: breathing.
If you teach your dog a trick and then reward him with a treat when he performs the trick, this is an example of learned behavior. Over time, the dog learned that he would be rewarded for following your command.
maladaptive behavior
to show the way to food
diffusion
The cell body houses the nucleus.
Cell body
The person and their attitude promotes altruistic behavior.
small intestine
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