Which macromolecules were present in your saliva and food choices? explain why you think you got the results you did. i used potatoes, and vegetable oil as my food choices. plz explain your answers so i can understand

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box