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12th Class Biology Chapter 19 MCQs with Answers

12th Class Biology Chapter 19 MCQs

Boost your exam preparation with 12th Class Biology Chapter 19 MCQs on Growth and Development. Cover essential topics like cell differentiation, plant hormones, and animal growth cycles. These MCQs are designed to clarify concepts while incorporating trending terms like biology growth quiz, development MCQs, and plant growth test. Ace your studies with this focused practice!

Which of the following is NOT a stage of human development?
a) Neonatal
b) Infantile
c) Toddler
d) Juvenile

Answer
b) Infantile

Growth refers to:
a) Increase in size
b) Acquisition of skills and abilities
c) Psychological changes
d) All of the above

Answer
a) Increase in size

Which hormone is responsible for the growth spurt during adolescence?
a) Estrogen
b) Testosterone
c) Insulin
d) Thyroxine

Answer
b) Testosterone

The process of cell division that results in two identical daughter cells is called:
a) Mitosis
b) Meiosis
c) Replication
d) Fertilization

Answer
a) Mitosis

Which of the following is a prenatal developmental stage?
a) Infancy
b) Childhood
c) Fetal
d) Adolescence

Answer
c) Fetal

During which prenatal stage does the organ formation occur?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
b) Embryo

At what age does the fontanelle (soft spot) on a baby’s skull usually close?
a) 3 months
b) 6 months
c) 12 months
d) 18 months

Answer
c) 12 months

Which of the following is NOT a factor affecting growth and development?
a) Genetics
b) Environment
c) Nutrition
d) Economic status

Answer
d) Economic status

Which sense is the least developed in newborn babies?
a) Vision
b) Hearing
c) Taste
d) Touch

Answer
a) Vision

The process of physical changes that occur as an individual reaches sexual maturity is called:
a) Menopause
b) Puberty
c) Andropause
d) Adolescence

Answer
b) Puberty

Which stage of development comes after infancy?
a) Childhood
b) Adolescence
c) Toddlerhood
d) Adulthood

Answer
c) Toddlerhood

Which of the following is a secondary sexual characteristic in males during puberty?
a) Enlargement of breasts
b) Deepening of voice
c) Start of menstruation
d) Widening of hips

Answer
b) Deepening of voice

At what age does a typical child start walking?
a) 6 months
b) 9 months
c) 12 months
d) 18 months

Answer
c) 12 months

Which hormone is responsible for milk production in breastfeeding mothers?
a) Estrogen
b) Testosterone
c) Prolactin
d) Insulin

Answer
c) Prolactin

The period of human life between childhood and adulthood is called:
a) Adolescence
b) Infancy
c) Toddlerhood
d) Gerontology

Answer
a) Adolescence

Which of the following is a prenatal environmental factor that can affect fetal development?
a) Genetics
b) Nutrition
c) Maternal age
d) Sibling order

Answer
b) Nutrition

The primary sex organs in males are the:
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes

Answer
b) Testes

Which of the following is a milestone of cognitive development in infants?
a) Walking
b) Speaking full sentences
c) Object permanence
d) Solving complex math problems

Answer
c) Object permanence

What is the approximate age range for early childhood?
a) 0-2 years
b) 2-6 years
c) 6-12 years
d) 12-18 years

Answer
b) 2-6 years

During which prenatal stage does implantation occur in the uterus?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
d) Blastocyst

Which of the following is a secondary sexual characteristic in females during puberty?
a) Deepening of voice
b) Growth of facial hair
c) Breast development
d) Adam’s apple enlargement

Answer
c) Breast development

Which theorist is known for the stages of psychosocial development across the lifespan?
a) Erik Erikson
b) Jean Piaget
c) Sigmund Freud
d) Lawrence Kohlberg

Answer
a) Erik Erikson

Which type of development involves changes in an individual’s thoughts, feelings, and behaviors?
a) Cognitive development
b) Physical development
c) Social development
d) Emotional development

Answer
c) Social development

At what age does a typical child start speaking their first words?
a) 6 months
b) 9 months
c) 12 months
d) 18 months

Answer
c) 12 months

The period of human life after adolescence is called:
a) Childhood
b) Adulthood
c) Toddlerhood
d) Gerontology

Answer
b) Adulthood

Which of the following is a prenatal environmental factor that can affect fetal development?
a) Genetics
b) Nutrition
c) Maternal age
d) Sibling order

Answer
b) Nutrition

The primary sex organs in males are the:
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes

Answer
b) Testes

Which of the following is a milestone of cognitive development in infants?
a) Walking
b) Speaking full sentences
c) Object permanence
d) Solving complex math problems

Answer
c) Object permanence

What is the approximate age range for early childhood?
a) 0-2 years
b) 2-6 years
c) 6-12 years
d) 12-18 years

Answer
b) 2-6 years

During which prenatal stage does implantation occur in the uterus?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
d) Blastocyst

Which of the following is a secondary sexual characteristic in females during puberty?
a) Deepening of voice
b) Growth of facial hair
c) Breast development
d) Adam’s apple enlargement

Answer
c) Breast development

Which theorist is known for the stages of psychosocial development across the lifespan?
a) Erik Erikson
b) Jean Piaget
c) Sigmund Freud
d) Lawrence Kohlberg

Answer
a) Erik Erikson

Which type of development involves changes in an individual’s thoughts, feelings, and behaviors?
a) Cognitive development
b) Physical development
c) Social development
d) Emotional development

Answer
d) Emotional development

At what age does a typical child start speaking their first words?
a) 6 months
b) 9 months
c) 12 months
d) 18 months

Answer
c) 12 months

The period of human life after adolescence is called:
a) Childhood
b) Adulthood
c) Toddlerhood
d) Gerontology

Answer
b) Adulthood

Which of the following is a prenatal environmental factor that can affect fetal development?
a) Genetics
b) Nutrition
c) Maternal age
d) Sibling order

Answer
b) Nutrition

The primary sex organs in males are the:
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes

Answer
b) Testes

Which of the following is a milestone of cognitive development in infants?
a) Walking
b) Speaking full sentences
c) Object permanence
d) Solving complex math problems

Answer
c) Object permanence

What is the approximate age range for early childhood?
a) 0-2 years
b) 2-6 years
c) 6-12 years
d) 12-18 years

Answer
b) 2-6 years

During which prenatal stage does implantation occur in the uterus?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
d) Blastocyst

Which of the following is a secondary sexual characteristic in females during puberty?
a) Deepening of voice
b) Growth of facial hair
c) Breast development
d) Adam’s apple enlargement

Answer
c) Breast development

Which theorist is known for the stages of psychosocial development across the lifespan?
a) Erik Erikson
b) Jean Piaget
c) Sigmund Freud
d) Lawrence Kohlberg

Answer
a) Erik Erikson

Which type of development involves changes in an individual’s thoughts, feelings, and behaviors?
a) Cognitive development
b) Physical development
c) Social development
d) Emotional development

Answer
d) Emotional development

At what age does a typical child start speaking their first words?
a) 6 months
b) 9 months
c) 12 months
d) 18 months

Answer
c) 12 months

The period of human life after adolescence is called:
a) Childhood
b) Adulthood
c) Toddlerhood
d) Gerontology

Answer
b) Adulthood

Which of the following is a prenatal environmental factor that can affect fetal development?
a) Genetics
b) Nutrition
c) Maternal age
d) Sibling order

Answer
b) Nutrition

The primary sex organs in males are the:
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes

Answer
b) Testes

Which of the following is a milestone of cognitive development in infants?
a) Walking
b) Speaking full sentences
c) Object permanence
d) Solving complex math problems

Answer
c) Object permanence

8
What is the approximate age range for early childhood? a) 0-2 years
b) 2-6 years
c) 6-12 years
d) 12-18 years

Answer
b) 2-6 years

During which prenatal stage does implantation occur in the uterus?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
d) Blastocyst

Which of the following is a secondary sexual characteristic in females during puberty?
a) Deepening of voice
b) Growth of facial hair
c) Breast development
d) Adam’s apple enlargement

Answer
c) Breast development

Which theorist is known for the stages of psychosocial development across the lifespan?
a) Erik Erikson
b) Jean Piaget
c) Sigmund Freud
d) Lawrence Kohlberg

Answer
a) Erik Erikson

Which type of development involves changes in an individual’s thoughts, feelings, and behaviors?
a) Cognitive development
b) Physical development
c) Social development
d) Emotional development

Answer
d) Emotional development

At what age does a typical child start speaking their first words?
a) 6 months
b) 9 months
c) 12 months
d) 18 months

Answer
c) 12 months

The period of human life after adolescence is called:
a) Childhood
b) Adulthood
c) Toddlerhood
d) Gerontology

Answer
b) Adulthood

Which of the following is a prenatal environmental factor that can affect fetal development?
a) Genetics
b) Nutrition
c) Maternal age
d) Sibling order

Answer
b) Nutrition

The primary sex organs in males are the:
a) Ovaries
b) Testes
c) Uterus
d) Fallopian tubes

Answer
b) Testes

Which of the following is a milestone of cognitive development in infants?
a) Walking
b) Speaking full sentences
c) Object permanence
d) Solving complex math problems

Answer
c) Object permanence

What is the approximate age range for early childhood?
a) 0-2 years
b) 2-6 years
c) 6-12 years
d) 12-18 years

Answer
b) 2-6 years

During which prenatal stage does implantation occur in the uterus?
a) Zygote
b) Embryo
c) Fetus
d) Blastocyst

Answer
d) Blastocyst

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