Animal classification

Comprehension test

1. 
   The building blocks of all living things are which of the following?
   

1. 
   Cells
   
2. 
   Tissue
   
3. 
   Organs
   
4. 
   Systems
   

2. 
   Cells that are alike and perform the same job or function come together and make-up which of the following?
   

1. 
   Blocks
   
2. 
   Skin
   
3. 
   Tissue
   
4. 
   Organs
   

3. 
   One of the simplest kinds of animal is which of the following?
   

1. 
   A bat
   
2. 
   A cat
   
3. 
   A bird
   
4. 
   A sponge
   

4. 
   Vertebrates describe which of the following?
   

1. 
   Animals that have a backbone
   
2. 
   Animals that have no backbone
   
3. 
   Animals that have organs alike
   
4. 
   Animals that have hair not feathers
   

5. 
   A group of organs that work together to perform a certain job is called :
   

1. 
   A structure
   
2. 
   A system
   
3. 
   A science
   
4. 
   A symbol
   

6. 
   At first glance the bat and eagle might be grouped together because they both have wings and fly. However, when closely comparing the make-up of the bone structure, it is discovered that the bat’s bone structure closely resembles the leg of which of the following?
   

1. 
   A bird
   
2. 
   A frog
   
3. 
   A worm
   
4. 
   A cat
   

Mammals

Mammals are particular class of animal. What makes an animal a mammal are several things. First, they must have glands that give milk. This is to feed their babies. Second, they are warm-blooded. Third, all mammals have fur or hair. Humans are mammals and so are dogs, whales, elephants, and horses. Most mammals have teeth with the exception of the ant eater which doesn’t have any teeth. Mammals live in all sorts of environment including the ocean, underground, and on land. Some mammals , bats for example, can even fly. Mammals are sometimes divided into 3 types based on how they give birth and take care of their young.

Live young – most mammals give birth to live young (instead of laying eggs like birds or reptiles). These mammals are called placental mammals.

Marsupials – marsupials are special types of mammals that carry their young in a pouch. Some marsupials include the kangaroo, the koala, and the opossum.

Egg laying – a few mammals lay eggs, they are called monotremes.

Monotremes include the platypus and the long-nosed spiny anteater. Mammals have unique brains and are often very intelligent Humans are the most intelligent. Other intelligent mammals include the dolphin, the elephant, the chimpanzee , and the pig. That’s right, pigs are thought to be one of the smartest animals! Mammals that eat meat and called carnivores. Carnivores includes lions, tigers, seals, and the largest carnivore mammal which is polar bear. Mammals that eat only plants are called herbivores. Some herbivores are cows, elephants, and giraffes. Mammals that eat both meat and plants are called omnivores. Humans are omnivores.