Studying embryology help scientists understand
1) how species reproduce
2) how a species makes food through photosynthesis
3) The early stages of an organisms growth
4) where organisms migrate during their lives

3) The early stages of an organisms growth

Explanation:

Embryology is the study of an organisms prenatal phase. This is the early development stage where the organism is still undergoing some changes before birth in order to become a full grown young one.

It involves the study of different stages that occurs from the point of fertilization to the embryo and foetus formation.

This explanation validates option 3.

the correct answer is ( hypoglycemia ); good luck

explanation:

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.