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Transcript
 Metamorphosis
refers to the
way that certain organisms
develop, grow, and change
form.
 Metamorphosis
actually
means "change".

INCOMPLETE METAMORPHOSIS - has
THREE stages

COMPLETE METAMORPHOSIS has FOUR stages.
Let’s take a closer look
at each stage!
Egg
Nymph
Adult
EGG
A
female insect lays eggs.
These eggs are often
covered by an egg case
which protects the eggs
and holds them together.
NYMPH




The eggs hatch into nymphs.
Nymphs looks like small adults,
but usually don't have wings.
Insect nymphs eat the same food that the
adult insect eats.
Nymphs shed or molt their exoskeletons and
replace them with larger ones 4-8 times as
they grow.
 ADULT
 Insects
stop molting when
they reach their adult size.
 Adults have wings.
 Cockroaches
 Dragonflies
 Grasshoppers
 Mayflies
Let’s take a closer look
at each stage!
Egg
Larva
Pupa
Adult
EGG
 The
female lays eggs on/near the
larvae’s food source.
LARVA
 Larva
hatch from the eggs.
 Larva usually have a worm-like
shape.
 Larvae molt their skin several times
and they grow slightly larger.
 Examples: Caterpillars, maggots,
and grubs
PUPA
Larvae make a casing around
themselves.
 Larva don't eat in this stage.
 Their bodies develop into an adult
shape with wings, legs, internal organs,
etc.
 The change takes from 4 days to
months.

ADULT
 After
a period of time, the
adult breaks out of the
pupa.
 Then it usually fills its wings
with blood
 The adult has a head,
thorax, abdomen, antennae,
6 legs, & usually wings
 Beetles
 Bees
 Wasps
 Ants
 Flies
 Butterflies
 Moths
Frogs undergo a different type of
COMPLETE METAMORPHOSIS.
 From the egg emerges a tadpole, which
lives in the water, breathes with gills, and
has a tail.
 As the tadpole grows, lungs and legs form,
and the gills and tail are absorbed into the
body.
 Finally, the animal leaves the water and
lives mainly on land, as a frog.

Let’s take Professor
Know-It-All’s Quiz
and see what we have
learned!

What are the two types of
metamorphosis?
Complete
2. Incomplete
1.

How many stages are there
in incomplete
metamorphosis?
Answer: 3

Name the stages of incomplete
metamorphosis.
Egg
2. Nymph
3. Adult
1.

How many stages are there
in complete
metamorphosis?
Answer: 4
- Name the stages in complete
metamorphosis.
Egg
2. Larva
3. Pupa
4. Adult
1.
Identify the cycle as complete or
incomplete metamorphosis.
Identify the cycle as complete or
incomplete metamorphosis.
D
E
C
F
B
A
Identify each stage of the complete
metamorphosis of the butterfly.
Identify the lifecycle of the frog as
complete or incomplete
metamorphosis.
How did
you do?