Birds and reptiles conduct fertilization and lay the eggs outside of the body.

Organisms within a population must compete for resources to survive

The first amino acid of a new polypeptide chain is

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals