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Name: ________________________________ Date: __________________ HR: ______
The Human Life Cycle Quiz
I. Match the following definitions to the appropriate word by writing the corresponding letter on the blank.
1._______ Adolescence
A.) A developing human during the first 8 weeks after fertilization has occurred.
2. _______ Amniotic sac
B.) A developing human from the 9th week of development until birth.
3. _______ Embryo
C.) A fertilized egg, no larger than a period at the end of this sentence,
produced by the joining of a sperm and an egg.
4. _______ Fetus
D.) A fluid-filled sac that cushions and protects a developing fetus in the uterus.
5. _______ Placenta
6. _______ Puberty
7. _______ Umbilical cord
E.) A membrane that becomes the link between the developing embryo or fetus
and the mother.
F.) The period of sexual development in which the body becomes able to
reproduce.
8. _______ Zygote
G.) A ropelike structure that forms between the embryo or fetus and the placenta.
H.) The stage of development between childhood and adulthood when children
become adults physically and mentally.
II. Use each term below only once to fill in the following blanks.
(a.) amniotic sac
(g.) nine
(b.) belly button
(h.) placenta
(c.) embryo
(d.) fetus
(i.) umbilical cord
(e.) fraternal twins
(j.) zygote
(f.) identical twins
9. The ___________________________________ is a scar from the umbilical cord.
10. _____________________________ develop from a single fertilized egg; the embryo splits into two identical embryo and
are always the same sex.
11. _____________________________develop when two eggs are released and fertilized by two different sperm; these twins
may or may not be the same sex.
12. What does the acronym ZEF stand for? (write the stages of a developing human in order)
_________________________
_________________________
_________________________
13. The developing human is protected and nourished by the _____________________ _____________________ ,
_____________________ _____________________, and _____________________.
III. Tell one fact about each stage of human growth and development.
14. Infancy:________________________________________________________________________________________
__________________________________________________________________________________________________.
15. Childhood: _____________________________________________________________________________________
__________________________________________________________________________________________________.
.
15. Adolescence: ___________________________________________________________________________________
__________________________________________________________________________________________________.
17. Adulthood: _____________________________________________________________________________________
__________________________________________________________________________________________________.
IV. Fill in the blank with the appropriate answer.
18. The unit for length is _________________________.
19. _________________________ is the first step of the scientific method.
20. _________________________ is the last step of the scientific method.
Check over your answers...Good luck!