Deadly diseases ;) Glad to help!!
Answer:
The answer is C) Brain. The brain processes the signals that are sent to it from the nerves in your body.
Answer:
because the frog is not really persons that the reasons why frog less the circulatory sysyem
A stable ecosystem is characterized by having a continual input of energy from the sun. This is required in order to sustain or maintain a stable structure. Without proper supply of energy, life would not exist. Hope this answers the question.