Answer:a compound present in the body as a neurotransmitter and a precursor of other substances including epinephrine
Explanation:
Answer: Mitochondria and chloroplasts.
Explanation: Mitochondria create energy for both plant cells and animal cells through cellular respiration. Chloroplasts create energy for plant cells through photosynthesis.
Explanation:
Make an observation about a phenomenon (qualitative and/or quantitative)
Ask a research question.
Hypothesize a possible answer for your question.
Create a procedure to test your hypothesis.
Identify what you are testing.
Identify your control group/experimental group.
Water can take 8-9 days
rubbing alcohol can take less then 12 hours
If the web happened to look like this one I attached then the anwser would be shrubs. If you take a look at the arrows the shrubs energy is moving to rats, insects and lizards which in turn feeds the coyotes. The starting point is shrubs and in general most food webs start with plants.
