One way scientists could have classified organisms is to separate them into unicellular and multicellular organisms. Explain why this is not a useful classification system

when it's short and dry.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

ya the other dude is right