Where does genetic engineering take place

What are the result of when individual components in an organism interact with others to create noval stucture and function called

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred