Final answer:
Pregnancy encompasses the entire period from fertilization to birth, while gestation specifically refers to the development of the fetus inside the uterus.
Explanation:
Pregnancy vs. Gestation
Pregnancy refers to the entire period from fertilization to birth, while gestation specifically denotes the period when the fetus is developing inside the mother's uterus. Both terms are related to the process of carrying and nurturing offspring in mammals.
In humans, gestation lasts for approximately 266 days, with variations in other great apes and animals. It involves the sequential development of the fetus' organs and systems, culminating in labor and delivery.
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