What are the three main parts of an angiosperm seed? ?

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

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia