animal classification

What type of animal spends its entire life under water, has fins, and breathes using gills

• amphibian

• fish

• bird

• reptile

Answer explanation

Fish are aquatic animals that live their entire lives underwater, possess fins for swimming, and use gills to breathe. This distinguishes them from amphibians, birds, and reptiles, which do not meet all these criteria.

What type of animal has dry scaly skin and lays its eggs on land?

• fish

• amphibian

• reptile

• mammal

Answer explanation

Reptiles are characterized by dry, scaly skin and they lay their eggs on land, unlike fish and amphibians which have different reproductive methods. Mammals typically give live birth.

Which animal doesn't belong?

• shark

• dolphin

• whale

• walrus

Answer explanation

The shark doesn't belong because it is a fish, while the dolphin, whale, and walrus are all mammals. This key difference in classification makes the shark the odd one out.

What type of animal spends part of its life in water and part on land and lays its eggs in water?

• amphibians

• reptiles

• birds

• fish

Answer explanation

Amphibians, such as frogs and salamanders, spend part of their life in water and part on land. They lay their eggs in water, which is a key characteristic that distinguishes them from reptiles, birds, and fish.

Tags

NGSS.3-LS1-1

Which animals are NOT classified as vertebrates?

• birds

• reptiles

• arthropods

• mammals

Answer explanation

Arthropods, such as insects and crustaceans, are invertebrates, meaning they lack a backbone. In contrast, birds, reptiles, and mammals are all vertebrates, as they possess a backbone.

How are reptiles and fish similar?

• They are warm cold-blooded.

• They both breathe through gills.

• They are both cold-blooded.

• They are both invertebrates.

Answer explanation

Reptiles and fish are both cold-blooded, meaning their body temperature is regulated by the environment. This is a key similarity, while the other options are incorrect as reptiles do not breathe through gills and are vertebrates.

Tags

NGSS.MS-LS4-2

How are dogs and iguanas similar?

• They are both warm-blooded

• They both have 4 legs

• They both give live birth.

• They both feed their young milk.

Answer explanation

Dogs and iguanas are similar in that they both have 4 legs. However, dogs are warm-blooded mammals, while iguanas are cold-blooded reptiles, making the other options incorrect.

Tags

NGSS.3-LS1-1

Which statement about pigs and bats is TRUE?

• Pigs and bats feed their young milk,.

• Pigs are mammals, but bats are birds.

• Pigs are warm blooded, but bats are cold-blooded.

• Pigs give live birth, but baths lay eggs.

Answer explanation

The correct statement is that pigs and bats feed their young milk, as both are mammals. The other options incorrectly classify bats and pigs or misrepresent their reproductive methods.

This is a 

• Reptile
• Fish
• Mammal
• Amphibian

Invertebrates do not have backbone, but they could have a hard outer shell.

• True

• False

Tags

NGSS.4-LS1-1