G5 REVIEWER

SCIENCE 5

CHAPTER 4
REPRODUCTION AMONG
ANIMALS

Reproductive Structures
of Different Animals

Chapter 4 Lesson 7

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Reproductive

Parts of
Animals

Multiple Choice

​What are the male gametes that are produced in the testicles of mammals?

• EGG CELLS

• SPERM CELLS

The reproductive system of male mammals
has two divisions: an external sexual
organ and a pair of testicles.

Mammals

The reproductive system of female
mammals has two divisions: the vagina
and uterus, and a pair of ovaries.

Mammals

Multiple Choice

What are the modified fins functioning as sexual organs commonly

developed by male sharks and rays?

• PAPILLA

• TAILS

• CLASPERS

• GILLS

Multiple Choice

It is a secondary reproductive organ of fishes that they use to release egg cells and sperm cells, respectively, which increases their chances of reproduction.

• PAPILLA

• TAILS

• CLASPERS

• GILLS

Male fishes have paired testicles or testes.
Just like in mammals, the testes of male
fishes produce sperm.

Female fishes possess paired ovaries. Eggs
are developed in the ovaries.

Aside from the major reproductive organs,
fishes also possess papilla. A fish
releases its egg cells and sperm cells
through its papilla.

Fishes

Fishes

Most species of insects have complex
reproductive systems. The egg cells and
the sperm cells are produced by cells
found inside the animal’s body.
Invertebrates

Invertebrates

Multiple Choice

What is an opening commonly found among birds, reptiles, and amphibians, where sperm cells, egg cells, and waste materials pass

through, respectively?

• PAPILLA

• CLASPERS

• CLOACA

• TAIL

Multiple Choice

It is a term used to describe organisms that carry both sexual organs or change their sex due to various factors.

• hermaphroditism

• CLASPERS

• CLOACA

• TAIL

is a term used to describe organisms
that carry both sexual organs or change
their sex due to various factors such
as climate.

Hermaphroditism

Multiple Choice

What is the process by which organisms preserve their kind?

• POLLINATION

• FERTILIZATION

• CONSUMERISM

• REPRODUCTION

Modes of
Reproduction of
Different Animals

Chapter 4 Lesson 8

Multiple Choice

What occurs when a sperm cell and an egg cell unite?

• POLLINATION

• FERTILIZATION

• CONSUMERISM

• REPRODUCTION

Reproduction is a process by which organisms
preserve their kind.

Reproduction

In sexually reproducing animals, fertilization occurs
when a sperm cell and an egg cell unite.

Fertilization

Fertilization is internal among mammals, reptiles,
and birds.

Fertilization occurs externally in animals such as
amphibians, fish, oysters, and corals.

The time it takes for an organism to develop from a
fertilized egg to birth is called gestation period.

Multiple Choice

The time it takes for an organism to develop from a fertilized egg to birth.

• FERTILIZATION PERIOD

• REPRODUCTION PERIOD

• GROWTH PERIOD

• GESTATION PERIOD

Types of
Animal

Reproduction

Sexual Reproduction

Asexual Reproduction

Sexual

Reproduction

Sexual reproduction involves the union

of gametes, one from the male and

another from the female.

Sexual

Reproduction

When the sperm cell and the egg cell

combine during fertilization, a zygote

is formed.

Asexual

Reproduction

Asexual reproduction is the production
of offspring without the fusion of egg

and sperm.

Asexual

Reproduction

Budding - occurs when an organism grows a

bud from its main body.

Asexual

Reproduction

Fragmentation - the body of animals breaks
into several pieces, which is followed by

regeneration

Multiple Choice

What occurs when an organism grows a bud from its main body?

• BINARY FISSION

• FRAGMENTATION

• BUDDING

• INTERNAL FERTILIZATION

Multiple Choice

The body of animals breaks into several pieces, which is followed by regeneration.

• BINARY FISSION

• FRAGMENTATION

• BUDDING

• INTERNAL FERTILIZATION