The stages of life based on the time line can be;
1. Foetus
2. Infancy
3. Toddler
4. Childhood
5. Puberty
6. Adolescents
7. Old age
Further Explanation:
The stage of life is defined as the chronological series of age an individual goes through. The stages can be described as below,
a. Foetus: This stages is when fertilization of egg takes place and it metamorphoses into an life. This stage takes place inside the uterus. This stage also termed as gestation period lasts for nine months in humans.
b. Infancy: This is the stage that starts from the time of birth to least one year.
c. Toddler: This stage of life is generally from one to three years.
d. Childhood: Children's in the age of three to eight years are termed to be in their childhood.
e. Puberty: This stage is generally seen in teen's of an individual. Wherein he/she undergo various developmental changes.
f. Adulthood: The stage that lies between puberty and old age is termed is adulthood. This generally lies between 19 to 50 years of age.
g. Old age: This stage of life lies above fifty years of age.
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Answer Details:
Grade: High School
Subject: Biology
Topic: Chronological Age Stages in Humans
Keywords:
Stages of life, child, foetus, infant, toddler, childhood, puberty, adulthood, old age.