Carbon dioxide, and Sulfur dioxide, because you have to know what gas are very dangerous and which ones arent........
Answer:
Option (e).
Explanation:
Nervous system is one of the most important systems of the organism that helps them to respond them towards the environment. The nervous system includes the brain, spinal cord and all the neurons.
Nervous system is present in highly complex organism and increases in complexity in case of higher animals. Lower animals do not have nervous system but still they respond to their environment with the help of chemical and receptor. Hence, all the animals have the ability to respond towards the environment.
Thus, the answer is option (e).
Try meditation every night before bed. Breath in through your nose count to 4 and breath out through your mouth and count to 4,do this 5-10 times when ever you feel really stressed and before bed. I do this every night and it helps me hope it works for Heidi and her sister
I believe the answer is A.
