The document summarizes the stages of incomplete or gradual metamorphosis in insects. It states that about 12% of insects undergo three stages: egg, nymph, and adult. Eggs are laid and hatch into nymphs, which resemble small adults and molt and grow until reaching adulthood. At the adult stage, insects typically develop wings if they had not already. It provides examples of insects that undergo this three-stage life cycle like mayflies, cicadas, grasshoppers, aphids, lice, and cockroaches.

1. Terrestrial
Plants
SCIENCE IV

2. ELICIT
01

3. Name the stages of the life cycle of Butterfly

4. ENGAGEMENT!

5. ____1. ____ 2. ____ 3.
Directions: Name the organisms below.

6. EXPLORATION

7. Directions: Examine the illustration below.
Guide Questions:
● What are the stages
in the life cycle of a
cockroach?
● How would you
describe an adult
cockroach?

8. EXPLANATION

9. Gradual metamorphosis
About 12% of insects undergo the
three stages of gradual
metamorphosis. These includes the
mayfly, cicada, grasshopper, aphid,
louse, and cockroach.

10. The three stages are:
Egg-a female insect lays eggs.
Sometimes the eggs are in groups
and protected by a covering or
case.
Nymph- the eggs hatch into nymphs.
Nymphs look like small adults, but usually
don’t have wings. They eat, grow, and
change.

11. Adult-
Nymph molts their exoskeletons as they
grow. As this occurs, they gradually begin
to look more and more like an adult.
once the nymph has grown to an adult size,
they stop molting. Generally, it is in the
adult stage where insects develop its wings.
An adult’s primary interest is mating.

12. Animal Egg Nymph Adult
Louse
Grasshopper
Cockroach

13. ELABORATION

14. Label the diagram: Life Cycle of the Cockroach
Guide Questions:
1. What are the stages in
an incomplete
metamorphosis?
2. What stage is present in
complete metamorphosis
but missing in incomplete
metamorphosis?

15. EVALUATION

16. Incomplete metamorphosis is a type of________(1) in
which an insect hatches from an ____(2) and then goes
through several ______(3) stages. The _____(4) form is
often only distinguishable from the nymph by size and
the presence of____(5).
Directions: Fill in the blanks to complete the statement.
Select the word from the box.
adult nymph
egg wings metamorphosis

17. EXTEND

18. Draw the life
cycle of
grasshopper
Assignament

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