The scientist who introduced the term 'biology' was: MCQ with Answer and Explanation

Explanation:
The uterus is a hollow, muscular organ where the fertilized egg implants into the endometrium and develops into an embryo and fetus. The ovaries produce eggs and hormones, the fallopian tubes are the fertilization site, and the vagina is the birth canal and copulatory organ.

Explanation:
Vitamin B₁₂ contains cobalt, hence the name cobalamin. It is involved in DNA synthesis, red blood cell maturation, and nervous system maintenance. Deficiency leads to pernicious anemia and neurological disorders.

Explanation:
Immunoglobulin G (IgG) is the most abundant antibody in blood plasma, providing long-term immunity and crossing the placenta. Immunoglobulin E (IgE) is present in small amounts and binds to mast cells, triggering the release of histamine during allergic reactions. Immunoglobulin A (IgA) is predominantly found in mucosal secretions like saliva, tears, and breast milk, providing localized mucosal immunity. All statements are correct.