SCIENCE

An invertebrate aquatic animals with spiny skin surrounding an exoskeleton.

• Echinoderms

• Cnidarians

• Crustaceans

A group of invertebrate animals that includes insects, spiders, centipedes, and millipedes.

• Echinoderms

• Arthropods

• Reptiles

Squids and octopus have a shell inside their body called?

• Pen

• Scale

• Exoskeleton

They have segmented bodies that look like stacks of rings.

• Annelids

• Platyhelminthes

• Ascariasis

They are soft unsegmented worms that has tissues and simple organ systems.

• Annelids

• Platyhelminthes

• Ascariasis

Which of the following animals DOES NOT belong to the group?

• Starfish

• Sea Urchin

• Jelly fish

An invertebrate aquatic animals that does not have mouth, muscles, heart, and brain.

• Echinoderms

• Sponges

• Arthropods

It is the only animals covered with feathers that are made up of keratin.

• Amphibians

• Mammals

• Birds

The entire body of arthropods is covered by hard outer skeleton, called?

• Exoskeleton

• Scale

• Pen

A nematode, especially a parasitic one found in the intestines of mammals.

• Annelids

• Platyhelminthes

• Ascariasis