BLOOMINGTON MIDDLE AND GRADE SCHOOL
# 1 Ironwood St., Rainbow Village V, Deparo, Caloocan City
Science 5
Module #4
Unit Topic: How Animals Reproduce?
Grade and Section: 5
Teacher: Ms. Lorraine Mae G. Gallano
Content Standard:
- Describe the different modes of reproduction in animals such as butterflies, mosquitoes, frogs,
cats, and dogs.
Discussion:
Sexual Reproduction
- Most animals have reproductive organs contains the sex cells and gametes.
- A male animal has testes which produce millions of male gametes called sperm.
- A female animal has ovaries which produce eggs, the female gametes.
- Sexual reproduction starts with the process of fertilization, with the union of an egg cell from a
female and sperm cell from a male.
Zygote- divides repeatedly to give rise to a ball of cells, which develop into different tissues and
organs of the animal’s body.
Kinds of Fertilization
External Fertilization- in many animals, fertilization takes place outside the body of the female.
- During rainy season, male and female frogs come together in water.
Oviparous Animals- animals which lay eggs.
Internal Fertilization- fertilization takes place inside the female body.
Viviparous Animals- some animals give birth to young ones; that is, the baby animal is born alive.
Hermaphrodites- invertebrates like earthworms, snails, tapeworms, and slugs.
Asexual Reproduction
Invertebrates- animals are single- called microscopic, or multicelled organisms.
- Some animals develop and grow through asexual reproduction.
- Asexual reproduction is done through following:
1. Fission- this mode of reproduction is also known as binary fission as observed in
amoeba, bacteria, coral polyps, and asteroid echinoderms.
2. Budding- in some invertebrates such as corals and hydras, budding occurs commonly.
3. Fragmentation- some animals break their bodies into distinct pieces, each of which can
mature, develop, and produce an offspring.
4. Regeneration- if a piece of a parent is detached, it can grow and develop into a completely
new individual.
5. Parthenogenesis- some vertebrates such as reptiles, fish, and amphibians reproduce
through parthenogenesis. An egg develops into a complete organism without being
fertilized.
Activity:
Answer Activity #1 in activity sheet for better understanding of the lesson.
Quiz:
Answer Activity #2 in Activity Sheet for better understanding of the lesson.
Reference:
Enjoying Life with Science 5
Deped CG MELC
BLOOMINGTON MIDDLE AND GRADE SCHOOL
# 1 Ironwood St., Rainbow Village V, Deparo, Caloocan City
Science 5
Module 4- Activity Sheet
Name: ____________________
Teacher: ______________ ____
Grade and Section: ___________
Unit Topic: How Animals Reproduce?
Activity #1: Art in Science
If you were an animal, what would you be? Draw it and write a paragraph to describe how it would
reproduce. Support your choice for such mode of reproduction by citing some advantages.
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BLOOMINGTON MIDDLE AND GRADE SCHOOL
# 1 Ironwood St., Rainbow Village V, Deparo, Caloocan City
Science 5
Module 4- Activity Sheet
Name: ____________________
Teacher: ______________ ____
Grade and Section: ___________
Unit Topic: Describing and Measuring Motion
Activity #2:
Instruction: Solve the crossword puzzle. Read the clues below to find the answers
1
2
3
4
6
7
8
5
9
10
11
12
13
17
14
18
Across
4. to start life outside; to ____ form eggs
6. union of sperm and egg cells
10. comes from the mammary glands
11. a kid
12. water animal
15. produced by female organ
17. born ______
18. flying animal
19, an animal like Big Bunny
Down
1. produced by the male organ
2. a household animal especially cared for
3. young cow
5. has chicks
7. a fertilized egg cell
8. male sex organ
9. egg cells
13. body covering of mammals
14. young goat
16. white sticky dot on egg yolk
15
16