He was a close friend to Charles Darwin so he helped him out in creating the theory of evolution so I would say C: He developed the idea of inheritance of acquired characteristics.
Because they supply much energy to the food by preparing their own food because the above one can't prepare it own their own
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Following spdf notation, the electron configuration for Nobelium (No) is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d0 7s2