Answer:
Teratogens and embryonic.
Explanation:
Teratogens may be defined as any chemical or physical agent that might cause mutations in the fetus. Teratogen is harmful for both the mother and the fetus.
Teratogen must be avoided during the pregnancy. As this effect the embryonic development and might cause the abnormal growth and development of a child. The child can born with missing eyes, ears or other body parts.
Thus, the answer is teratogens and embryonic.
Answer:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
