Different phases of human development are called
- developmental stages
- life cycle
- life span
- none of these
Which of the following are human developmental stages?
- infacy
- middle age
- adolescence
- all of these
Name the period of transition from childhood to adulthood.
- infancy
- middle age
- adolescence
- adulthood
which of the following changes that occur during puberty transform the body of a child into that of an adult?
- change in body size
- change in body proportions
- development of primary sex characteristics
- development of secondary sex characteristics
- all of these
Which of the following is primary sex organ of the male?
- testes
- ovaries
- ovule
- egg
The testes of the males secrete
- androgen
- estrogen
- hydrogen
- all of these
Which of the following changes are caused by androgens?
- growth of larynx
- muscle development
- stimulation of sweat glands
- all of these
Which of the following are female sex hormones?
- estrogen
- androgen
- progesterone
- both estrogen and progesterone
Which of the following changes are caused by estrogens?
- stimulates development of breast
- distribution of body fat
- development of external genitalia
- all of these
Which of the following are secondary sex characteristics of boys?
- hair
- skin
- muscle
- all of these