reproduction is types of reproduction -...

Reproduction In living things… 1 • when living things produce an offspring. What is Reproduction? Reproduction in living things… Reproduction is… Types of Reproduction • Asexual • Requires one parent • Simplest form of reproduction • Produces a clone of the parent • Sexual • Requires two organisms • Male and Female 2 Asexual Reproduction Reproduction in living things… Let’s watch… 3 • The young grows out of the body of the parent Asexual Reproduction Reproduction in living things… Budding Watch and observe 4

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ReproductionIn living things…

• when living things produce an offspring.

What is Reproduction?Reproduction in living things…

Reproduction is…

Types of Reproduction• Asexual • Requires one parent • Simplest form of reproduction • Produces a clone of the parent

• Sexual • Requires two organisms • Male and Female

Asexual ReproductionReproduction in living things…

Let’s watch…

• The young grows out of the body of the parent

Asexual ReproductionReproduction in living things…

Budding

Watch and observe

Page 2: Reproduction is Types of Reproduction - Weeblyxsscience5.weebly.com/.../5_reproduction_animal.pdf · Reproduction in living things… Let’s watch… 11 •When the sperm cell fuses

• The body of the parent breaks into pieces

Asexual ReproductionReproduction in living things…

Fragmentation

Watch and observe

• A part of the parent is detached from the rest of its body.

Asexual ReproductionReproduction in living things…

Regeneration

Asexual ReproductionReproduction in living things…

Regeneration

Asexual ReproductionReproduction in living things…

Fragmentation VS Regeneration

Fragmentation Regeneration

Occurs in multi-cellular organisms with simple

body organization

Occurs in fully differentiated multi-cellular organisms with complex

body organization

An organism breaks into pieces and each piece develops into a

new individual.

An organism breaks into pieces and each piece

may or may not develop into a new individual.

Page 3: Reproduction is Types of Reproduction - Weeblyxsscience5.weebly.com/.../5_reproduction_animal.pdf · Reproduction in living things… Let’s watch… 11 •When the sperm cell fuses

• A parent releases a special mass of cells

Asexual ReproductionReproduction in living things…

Formation of Internal Buds

Asexual ReproductionReproduction in living things…

Formation of Internal Buds

Sexual ReproductionReproduction in living things…

Let’s watch…

• When the sperm cell fuses with the egg cell • These are called gamete cells

Sexual ReproductionReproduction in living things…

It all starts with fertilization

Kinds of Fertilization

• External Fertilization • Eggs are fertilized outside the female body.

• Internal Fertilization • Eggs are fertilized inside the female body.

Page 4: Reproduction is Types of Reproduction - Weeblyxsscience5.weebly.com/.../5_reproduction_animal.pdf · Reproduction in living things… Let’s watch… 11 •When the sperm cell fuses

Sexual ReproductionReproduction in living things…

When does a human life begin?

• When the sperm cell reaches the egg cell

Sexual ReproductionReproduction in living things…

When does a human life begin?

And then…

• A series of cell division happens • The fertilized egg attaches to the womb of the

mother • The uterus becomes bigger to accommodate

the baby for 9 months • The developing embryo gets nutrients through

the umbilical cord

Sexual ReproductionReproduction in living things…

When does a human life begin?

Sexual ReproductionReproduction in living things…

When does a human life begin?

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