Answer:
The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients. Earth's environmental spheres. Earth's environment includes the atmosphere, the hydrosphere, the lithosphere, and the biosphere.
Explanation:
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<span>a.multituberculate.
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C) centrioles is correct
All other parts have important functions but only centrioles help with chromosomes