The history of biology<span> traces the study of the living world from ancient to modern times </span>
Rubbing alcohol will float and corn oil will sink
Salutations!
Organisms that derive their energy from the sun and carbon from carbon dioxide area photoautotrophs. These organisms carry out photosynthesis. Examples of photoautotrophic organisms are: algae, green plants etc.
Hope I helped (:
Have a great day!
Answer:
I believe it is the 3rd one ( bottom one)
I really don't know but I know that its part of your body
