5. They have bodies that are covered with scales or plates. They lay their eggs on
land and can live both in land and in water.
A. Mammals
B. Birds
C. Reptiles
D. Fishes
6. Which of the following is a characteristics of invertebrates?
A. They have soft bodies.
B. They are cold-blooded.
C. They don't have a backbone.
D. All of the above.
7. They are single-celled organisms. Amoeba and paramecia belong to this group.
What group of invertebrate animals is this?
A. Annelids
B. Echinoderms C. Mollusks
D. Protozoans
8. All of the following are example of Arthropods except one, which is it?
A. squid
B. shrimp
C. crabs
D. lobsters
9. Which animal belongs to Echinoderms group?
A. starfish
B. fish
C. octopus
D. earthworm
10. All of the following are vertebrates except one, which is it?
A. frog
B. birds
C. reptiles
D. insects

5. Reptiles live on land, have scaly skin and lay eggs with shells. They have lungs rather than gills and may or may not have teeth. Some examples of reptiles are turtles, tortoises, lizards, snakes, crocodiles, and dinosaurs (now extinct).

6. All animals that dont have backbones are invertebrate and All vertebrates have backbones.

7. Single-celled organisms such as amoebas and paramecia.

8. Because squid is belong to Mollusks.

9. Echinoderms are invertebrate marine organisms that have hard and spiny skin or covering. Examples of echinoderms are sea urchins, sea lilies, sea cucumbers, feather stars, and sea stars (starfishes).

10. Sponges, corals, worms, insects, spiders, and crabs are all sub-groups of the invertebrate group - they do not have a backbone.