Answer:
I think it might be heart, lungs, blood, arteries, veins, and muscle cells
Explanation:
Answer:
How can examining specimens under a microscope help scientists classify an organism? It can help scientists classify an organism because they can see it super close up. In plant cells, how are chloroplasts and mitochondria related?
Explanation:
Biosphere, Geosphere (maybe cryosphere), hydrosphere.
I'm not sure, correct me if I'm wrong.