Answer:
Prokaryotic cells include archaea and bacteria. They do not have membrane bound nucleus as well as most of the organelles
A. by producing random changes in an organism's genetic code
Answer:
C. The heartbeat of the developing human can be heard via stethoscope.
This type of organism is called an autotroph.They are organisms capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy
Genetic variation
Is the best term to use