What type of microscope would be used in the laboratory to observe very small objects or organisms on a slide?

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Which atmospheric later is where earths northern and southern lights occur