The shape of an enzymes active site fits the shape of a certain molecule that is affected by the enzyme. It's like a puzzle piece fitting into another puzzle piece. The molecule in the reaction being catalyzed fits into the enzyme. Hopefully this helps, this is how I was taught
Made of cells
Reproduction
Sense and respond to change
DNA
Use of energy
Growth and development
Im not sure if thats how it really works but if it did, either it would have to be very minimal to reduce overheating or it's just the bottom few layers of skin keeping the heat in while the muscles contract and retract.
Because those hazardous waste products do not get into the crops, which we then eat so we would end up spreading them when we defecate, and then other creatures would pass on then feces (the dung beetles), and creatures would eat the beetles(probably coyotes), and then chain would keep on going.
1) Osmosis is passive transport
