- Cellulose polymers join in layers with the glue like substance lignin, which is another polymer .
- When you exercise, your body is releasing endorphins, something like a natural morphine like substance that pumps through your body and that helps relax you.
- And when you exercise, your body is releasing endorphins. And that's something that's like a natural morphine like substance that pumps through your body, and that helps to relax you.
- anterior pituitary like substance
- rheumatoid factor like substance
- You can keep my book as long as you like.