Performance Task 4
A. Determining the Distinguishing Characteristics of Invertebrates
1. Read the following riddles about the common invertebrates found in your
locality.
2. Complete the table with the needed details.
Riddle
Animal Classification Description
1. It lives in the ocean. It likes to
eat crabs. Its eight legs are called
tentacles.
2. It is flatworm with long
unsegmented body. It has a tail and
a head end. It commonly lives
humans.
3. It lives in the sea but itis not a
fish. It has five arms covered with
spiny skin on top.
4. It can be found in the branches
of trees and in the house. It spins
sill which
be used for
capturing its prey.
5. It is a round worm
which lives in the small
intestine of humans. It can cause
intestinal disease.
6. It does not bite nor sting. It has
compound
eyes.
can spread
diseases.
7. It has an elongated
body with one pair of legs per body
segment. It can inflict pain by
injecting its venom.
8. It burrows underground
through the soil and brings subsoil
closer to the surface. It helps the
soil become fertile.
9. Its body is 95% made of water. It
looks like a transparent cellophane
that floats under water.
10. It is covered with a hard shell
and is armed with a single pair of
claws. It takes skill to catch this
animal for food.​​