Step 2 should be sensory neurons send electrical signals to the brain
Step 3 brain learns information about the environment
Step 4 brain sends electrical signals to the muscles
Answer:
glucose
Explanation:
a compound made up of carbon hydrogen and oxygen that living things use for structural purposes and as their main source of energy is glucose which produce 36 ATP molecule on respiration which is one of the important source of energy and living organism use it for performing their activities
Kilograms I think I might be wrong but that's what I think.
<span>The RNA world is the hypothesized format of chemical life that existed prior to our current DNA and RNA world. In the RNA world, RNA molecules formed in the primordial soup and began to evolve by self-replication and mutation. This led to increased complexity, natural selection of "better" RNA and diversification of RNA based life.</span>
The immune system helps neutralize disease and infection. The digestive system processes nutrients from food. The skeletal system includes your bones and supports and protects your body. The correct answer is the nervous system.
