Yo can someone help me out

What was carolus linnaeus' classification system of organisms based on? a.physical characteristics of organisms b.food habits of organisms c.habitat of organisms d.size of organisms

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000