SCI7 Observable features of living things

What is the main feature that distinguishes fish from other animals?

• They have fur.

• They have feathers.

• They have scales and breathe through gills.

• They have wings.

Answer explanation

Fish are distinguished from other animals by their scales and ability to breathe through gills.

Which group of animals is known for having feathers?

• Mammals

• Birds

• Reptiles

• Amphibians

Answer explanation

Birds are known for having feathers.

Classify these organisms into their correct group

Groups:

(a) Mammal

,

(b) Fish

,

(c) Reptile

,

(d) Bird

• Ostrich
• Swordfish
• Alligator
• Tortoise
• Dog

• Bass
• Tiger
• Trout
• Sparrow
• Penguin
• Tuna
• Eagle
• Lion
• Salmon
• Hummingbird
• Crocodile
• Elephant
• Lizard
• Cat
• Snake

What is a unique feature of insects that sets them apart from other animals?

• They have a backbone.

• They have six legs.

• They can breathe underwater.

• They have fur.

Answer explanation

Insects have six legs, which is a unique feature that sets them apart from other animals.

Which of the following is a characteristic feature of mammals?

• They lay eggs.

• They have scales.

• They produce milk for their young.

• They have gills.

Answer explanation

Mammals are characterized by producing milk for their young.

Reptiles are known for having what type of skin covering?

• Feathers

• Scales

• Fur

• Smooth skin

Answer explanation

Reptiles have scales as their skin covering, which provides protection and helps in retaining moisture.

Which of the following animals is an example of a mammal?

• Crocodile

• Shark

• Eagle

• Dolphin

Answer explanation

Dolphin is an example of a mammal.

Reorder the following taxa from largest to smallest!

• Genus

• Kingdom

• Group

• Species

• Class

Label the parts of the Dichotomous Key

a

b

c

d

Class title

Branches

Dichotomous question

Classificaiton

Insects have _____ body segments: head, thorax, and abdomen.

Answer explanation

Insects have three body segments: head, thorax, and abdomen. This is the correct choice.