1. The document is a science reviewer set for grade 5 students with questions about reproduction in animals. 2. It includes multiple choice, true/false, labeling, matching, and enumeration questions about sexual and asexual reproduction, gamete formation, internal and external fertilization, viviparity and oviparity. 3. The questions cover topics like the male and female reproductive systems and gametes, fertilization, embryonic development, puberty, and the role of reproduction in population dynamics.

1. 1 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
Science Reviewer Set
Grade VI
2nd Periodical Monthly Test
Name: ________________________________ Score: __________________
Test 1. True or False . Write True if the statement is correct and False if it not.
_______1. There are two basic types of reproduction: asexual and sexual.
_______2. Asexual reproduction, there is only one parent, and no special reproductive cells or
organs are involved.
_______3. Sexual reproduction is the union of two nuclei from special sex cells is involved.
_______4. The gametes of animals develop in specialized organs called gonads.
_______5. The female gonads are called ovaries.
_______6. The male gonads are called testes.
_______7. Fishes are water animals.
_______8. Few species of fish possess both sets of sexual organs, and they are called
hermaphrodites.
_______9. A frog is an amphibian animal.
_______10. Lolong is the biggest crocodile in the world.
_______11. Crocodiles, alligators, turtles are good example of reptiles.
_______12. Both male and female birds have cloaca.
_______13. The single characteristic that distinguishes birds from all other animals is the
presence of feathers.
_______14. Different animals posses complicated reproductive systems, and they also differ in
the way they reproduce.
_______15. Animals reproduce for the continued existence of their own kind.
_______16. Budding is a mode of asexual reproduction when the parent organism splits into two
unequal parts.
_______17. Budding occurs in hydra as well as in sponges and some worms.
_______18. Regeneration is the ability of an organism to regrow lost body parts.
_______19. Planarians belong to the family of flatworms.
_______20. In external fertilization, the eggs are fertilized in the environment outside the body
of the female.
_______21. In internal fertilization, occurs within the body of the female.
_______22. All mammals give birth to their young.

2. 2 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
Test II. Label the Parts
The reproductive system of a female cat
Test III. Enumeration
1-3. Animals can reproduce asexually in the following ways;
1. ________________________________
2. ________________________________
3. ________________________________
4-5. Two basic ways in which the gametes are brought together.
4. ________________________________
5. ________________________________
6-7. Examples of animals that undergoes external fertilization.
6. ________________________________
7. ________________________________
8-13. Examples of animals that undergoes internal fertilization.
8. ________________________________
9. ________________________________
10. ________________________________
11. ________________________________
12. ________________________________
13. ________________________________
1. ___________
2. ___________
5. ___________
6. ___________
8. __________
3. _____________4.
_______
______
9. __________

3. 3 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
Test IV. Categorization. Categorized the following animals enlisted below the table to
Oviparous (Egg-laying) or Viviparous (Livebearers) animal.
Animal
Oviparous
(Egg-laying)
Viviparous
(Livebearers)
1. carabao
2. parrot
3. frog
4. turtles
5. chicken
6. cow
7. parrot
8. chameleon
9. lizards
10. pythons
11. viper
12. garter snake
13. sharks
14. guppies
15. salmon
Test V. Multiple Choice. Encircle the correct answer.
1. What is reproduction?
a. when parents make offspring
b. when offspring make adults
c. when offspring is an exact copy of its parent
2. An egg laying mammal.
a. duck-billed platypus c. bat
b. whale shark d. goat
3. Some simple invertebrates reproduce by budding. What is budding?
a. when an animal develops from a part of its parent
b. when a bud forms on the adult's body and develops into a new animal
c. when a leaf buds into a flower
4. Sea stars and other echinoderms can reproduce by regeneration. What is regeneration?
a. an exact copy of its parent
b. a whole animal develops from a part of the original animal
c. when an animal develops from an egg
d. all of the above

4. 4 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
5. Why do animals reproduce?
a. to make new animals
b. obligation to the species
c. to get rid of unhealthy animals
d. to get food from its young
6. Which kind of animal would a bird produce?
a. owl c. monkey
b. bird d. butterfly
7. How many parents are involved in budding and regeneration?
a. 0 c. 2
b. 1 d. 3
8. Both budding and regeneration produce clones. What is a clone?
a. an exact copy of its parent
b. similar traits of its parent
c. exact opposite of its parent
9. When traits are passed from parent to offspring, those traits are ______________ .
a. characteristics
b. inherited
c. similar
d. different
10. Another kind of reproduction requires cells from two parents. What is the female cell called?
a. sperm c. egg
b. fertilization d. none of the above
11. The male cell is called the sperm. When an egg and a sperm join, what happens?
a. fertilization
b. regeneration
c. rebirth
d. budding
12. What is a female gamete called?
a. cervix c. ovary
b. sperm d. ovum
13. Why do many organisms produce thousands of offspring?
a. to increase the chance of surviving
b. to make sure that there are lots of brothers and sisters
c. to produce food for predators
d. egg production require very little energy
14. Which organism does not produce an external egg as part of its life cycle?
a. dog c. turtle
b. parrot d. insect
15. What process takes place when a sperm cell fuses with an egg cell?
a. combination c. fertilization
b. cloning d. interaction

5. 5 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
16. Which of these animals reproduce by external fertilization?
a. camel c. parrot
b. fish d. bats
17. In which animal does the process of budding occur?
a. hydra c. fish
b. earthworm d. planaria
18. What part of the female reproductive system produces egg?
a. oviduct c. ovary
b. uterus d. vagina
19. What is also known as fertilized egg?
a. gamete c. sperm
b. ovum d. zygote
20. When does a new life start?
a. when egg and sperm cells unite
b. when mature egg cells leave the ovary
c. when sperm cells travel to meet the egg cell
d. when an egg cell is fertilized by a sperm cell
21. How often does an egg cell mature and leave the ovary?
a. once a day b. once a week
c. once a month d. once a year
22. A female is already capable of reproduction when she ______
a. becomes 12 years old
b. becomes 20 years old
c. starts menstruating
d. reaches adulthood
23. What part of the sperm is flattened and oval shaped?
a. head b. nucleus
c. neck d. connecting piece
24. What is the whitish fluid that carries a sperm cell?
a. semen b. vesicles
c. urine d. water
24. Which organs in a girl’s body can make her mother someday?
a. heart b. ovaries
c. stomach d. testes
25. What will happen if living things will not reproduce?
a. population will decrease
b. organisms will not survive
c. organisms will not improved
d. organisms will not be able to adapt to their environment
26. Where does a fetus get food before birth?
a. uterus and ovary
b. placenta and ovary
c. uterus and umbilical cord
d. placenta and umbilical cord

6. 6 | G r a d e 5 S c i e n c e : R e v i e w e r S e t
27. How are identical twins formed?
a. linkage of two egg cell
b. division of two egg cell
c. division of one zygote into two
d. formation of two zygote from two egg and two sperm cells
28. The sac that holds the testes.
a. scrotum b. placenta
c. vas deferens d. penis
29. A fluid that contains millions of sperm.
a. amniotic b. urine
c. semen d. egg
30. A muscular tube that transports sperm-filled semen.
a. vagina b. fallopian tube
c. vas deferens d. urethra
31. A gland that makes some of the parts of semen.
a. ovary b. prostate
c. scrotum d. vagina
32. A set of coiled tubes that connect to the vas deferens.
a. fallopian tube b. epididymis
c. urethra d. urethra
33. Tiny male cell that unites with the female ovum to form a fertilized egg or zygote.
a. sperm b. testes
c. scrotum d. epididymis
34. These are responsible for carrying sperm filled semen from the male to the female's vagina.
a. penis and urethra b. gonads
c. testicles d. scrotum
35. A process in which sperm laden semen leaves the male body.
a. ovulation b. gestation
c. ejaculation d. reproduction
36. A chemical or hormone produced by the testes that causes bodily changes during male
puberty.
a. estrogen b. progesterone
c. amniotic d. prostate
37. A major male sex organ that produces and stores sperm.
a. prostate b. testicle
c. penis d. ovary