I think the answer is 3 because natural selection means when someone adapts to their environment
A. Geriatrics is the study of older people
Gynecology is the study of women's reproductive health
Obstetrics is the study of pregnancy and child birth
Pediatrics is the study of children
List of necessities for our body:
- Water.
- Food.
- Oxygen.
- The nervous system
Hemostatic drug
Antibiotics are used to treat an infection, so it wouldn’t be that one. Thrombolytic drugs are used to prevent blood clots, and they thin blood. So not that one. Coagulant drugs are used to thicken things, but this is a anticoagulant. Meaning it will thin it. I think the only logical answer would be hemostatic drug.
It is an embryo because a zygote is just a cell and it turns into a fetus after 8 weeks
