Astudent viewing a cell with a microscop observes a cell wall, a cell membrane, and a nucleus. the presence of these structures indicates that the student is looking at a a (1) rabbit (3) worm (2) carrot (4) fly

Disinfection of impression materials is usually accomplished by a. sterilization with high heat. b. spray or immersion in a chemical disinfectant. c. sterilization with steam under pressure. d. allowing the impression to sit 24 hours in water until all the organisms die.

When water freezes, it . contracts expands

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).