Unit 3, Animals Science 4 Pelangi

How do you determine if an animal is a vertebrate?

• Absence of the backbone

• Presence of the backbone

• Based on its skeletons

• Based on its eating habit

Which of the following animals is without a backbone?

• Elephant

• Jellyfish

• Lizard

• Pigeon

The chart shows a classification of animals.

Which the following do P and Q represent?

• P- Invertebrates

  Q- Vertebrates

• P- Vertebrates

  Q- Invertebrates

• P- Warm-blooded

  Q- Cold-blooded

• P- Giving birth

  Q- Laying eggs

A student classified some animals as shown in the following chart.

Which animal was not classified correctly?

• Dolphin

• Peacock

• Centipede

• Spider

What is the difference between annelids and roundworms?

• Annelids are segmented worms while roundworms are not segmented.

• Annelids have shells while roundworms do not have shells.

• Annelids have exoskeleton while roundworms have endoskeleton.

• Annelids have backbones while roundworms have no backbones.

Which invertebrates have hollow tubes with many pores?

• Flatworms

• Mollusks

• Sponges

• Arthropods

Some ________ live in the water or live in the digestive tract of other animals
to obtain food.

• flatworms

• mollusks

• annelids

• cnidarians

Which of the animals has the following characteristics?

• It is an invertebrate.
• Its body is soft and unsegmented.
• It has an internal shell called a pen.
• It lives in water.

• a squid

• a sea star

• a prawn

• a leech

Animal X has external skeleton to protect its body. It also has segmented body
with jointed legs. What is animal X?

• Sea urchin

• Beetle

• Snail

• Slug

Which of the following are cold-blooded animals?

• Fish

• Amphibians

• Reptiles

• All of the above