The answer that fits the blank provided above is STEROIDS. Steroids are fat-soluble signal molecules. This is one of the derivative compounds of cholesterol along with Vitamin D and bile salts. All steroid hormones are considered as a derivative of cholesterol. The answer for this would be option D.
If you removed one organism from the food chain, biomass would increase for the other organisms in the food chain
I would say B) 1-3 hours because Bacteria can multiply anywhere between 20 to 30 minutes and if it doubled in size 1-3 hours would be the most reasonable option!
Answer:
Explanation:
Bloodletting was proven to prevent illness and is widely used now.
