How is the body of an any more complex then then body of a sponge?

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

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?