Finally, what do you think will happen when blocks 3 and 4 (different size, different density) are placed in the water? Which block do you think is analogous
the continental crust or oceanic crust? Be as detailed as possible.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

the answer is c.mitochondria. glad to .

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%