animal structure and life cycle

ANIMAL STRUCTURE AND LIFE CYCLE

Mrs. Krajewski

CHARACTERISTICS OF ANIMALS

CHARACTERISTICS:

1. made of cells 2. They reproduce 3. They move 4. They eat food 5. They grow and

change

VERTEBRATES VS. INVERTEBRATES

VERTEBRATES INVERTEBRATES

All animals that have backbones.

Fish, amphibians, retiles, birds, and mammals

All animals that do not have a backbone.

Arthropods- (insects, crabs, spiders)

Text p. 22-23 Answer checkpoint question

1 on p. 23

WARM BLOODED VS. COLD BLOODED

WARM BLOODED COLD BLOODED

The body of a Warm Blooded animal does not change much.

The body of a Cold Blooded animal changes depending on their surroundings.

ANIMAL CLASSIFICATIONS

Animals are classified into different types of groups.:

To study the many forms of animal life in a systematic way, scientists have divided the animal kingdom into groups. These groups are largely based upon the structure of the animal's body. Information is from: http://kids.britannica.com/comptons/article-196401/animal

Insects Amphibians Mammals Reptiles Fish Birds

Open up to textbook p. 18

FISH

Fish are usually covered in scales. They live only in water. Fish breathe mostly by using their gills. Fish are cold blooded and most lay eggs.

There are three classes of fish:

1. the primitive jawless fishes, or Agnatha

2. the cartilaginous (shark like) fishes, or Chondrichthyes

3. the bony fishes, or Osteichthttp://answers.encyclopedia.com/question/three-classes-fish-

86809.htmlhyes.

AMPHIBIANS

Amphibians are covered with a smooth skin

They can live on both land and in the water.

They breathe by using their gills or with lungs, sometimes even both!

They are cold blooded They hatch from eggs

REPTILES

Reptiles are covered in scales

Most reptiles live on land

Some can live in water They use their lungs to

breathe They are cold blooded They usually lay eggs

BIRDS

Birds are covered with feathers.

They usually live on land, but some spend a great deal of time on water

Birds breathe using lungs

They are warm blooded They lay eggs

MAMMALS

All mammals have hair or fur

Most live on land, but a few live in water

They use lungs to breathe Mammals are warm

blooded, they control their body temperature

Most mammals have live births

APPLY TO LEARNING Draw this chart in your copybook and

list whether each classification is cold blooded or warm blooded:

FISH, AMPHIBIANS, REPTILES, BIRDS, MAMMALS

COLD BLOODED WARM BLOODED

MATCH THE PICTURE TO THE CLASSIFICATIONMammal

FISH AmphibianReptile Bird

CREATE A GRAPH Create a graph that compares the size

of animals to the number of young they bear.

Size Animal Number of Young

Small -Small-Medium-Medium-Large-Large-

LIFE CYCLES OF ANIMALSAnimals have a variety of life cycles. Each life cycle depends on the species and can vary greatly. Let’s read pages 20 and 21 together!

Let’s see

some

examples

!

RESEARCH: WHAT IS THE AVERAGE LIFE SPAN OF EACH ANIMAL?

Animal Life Span (average)

Dog

Human

Fish

Monkey

Fruit Fly

Your choice: ____________