Answer: Primary Sex characters
Explanation:
The primary sexual characters are associated with the growth of sexual organs such as uterus, vagina, penis and other reproductive organs in the human beings.
These organs are present in the body when the child is borne. This is because they grow when the child is inside the womb.
The development and maturation of these organs takes place during the later stages of life.
Because their bodies tell them that they need more oxygen and so breathe faster, and try and get the oxygen their body requires and depends on.
Enzymes can be destroyed by variations in temperature or pH
The planets appeared to move backward in the sky occasionally.
Answer:
Chromosomal non‐non disjunction resulting in extra sets of genes
