What could Carl Linnaeus no have used as a method of classification in his taxonomy system ? A. DNA
B. the habitats of organisms
C. structure of organisms
D. apperance of organisms

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

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

What is the name of the idea that energy cannot be created nor destroyed