16. Which organelles do all CELLS have in common? (Select ALL that apply.) *
nucleus
cytoplasm
cell membrane

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.

¿cómo demostraron los experimentos de griffith que un factor hereditario estaba involucrado en la transformación bacteriana?