Animal Diversity

•Animals are many-celled organisms that are made up of different kinds of cells.

Three Different Traits of Animals

1.Shape

2.Size

3.Color

Four Basic Needs of Animals

•Food

•Water

•Shelter

•Space

Animal Cells

• Nucleus and specialized structures

• Organized to form systems

• Enable animals to perform different functions:

–Sensing the environment

–Getting rid of wastes

–reproducing

Animals CAN’T make their own food.

• Eat plants

• Eat animals

• Eat both plants and animals

• Most animals can move from place to place to

find food/water, shelter, mates, and to protect

themselves from predators.

Animals eat different food.

• Octopuses: Tentacles

• Frogs: Long and sticky tongue

Animals are divided into two groups.

• Vertebrates: Group of animals that have backbones.

• Invertebrates: Group of animals with no backbone.

Fish

• Vertebrate that lives its whole life in water

1. Most diverse vertebrate group

2. Gills to breathe

3. Covered by scales

Amphibian

• Vertebrate that lives part of its life in water and part of its life on land

1. Thin, moist skin

2. Most have four legs

Reptile

• Egg-laying vertebrate with thick, dry skin

1. Snakes, turtles, alligators, and lizards

2. Covered with scales

3. Breathe with lungs

Bird

• Vertebrate that has both feathers and wings

1. Hollow bones

2. Air sacs to help them fly

Mammals

• Vertebrate that feeds its young milk

1. Humans

Invertebrates

• A. Sponge: simplest kind of animal

• G. Arthropods: Biggest group of animals

Mimicry

• Protected against predators by its resemblance to another, unpleasant animal

Camouflage

• blending in with the environment

1. Shape

2. Color

3. Protective Coloration: A type of camouflage

What is inherited?

A. Inherited: Passed down from one generation to the next

B. Instinct: Inherited behavior

C. Heredity: Passing down of inherited traits from parents to offspring

D. Inherited Behavior: Young birds building nests like their parents

E. Inherited Physical Trait:

1. Color of a bird’s feathers

2. Shape of a bird’s feet

F. Trait Not Inherited

1. Animal’s weight

2. Animal’s size

Learned Behavior

• Dog that goes to the door when owner picks up its

leash

Hybrids

• Crossing of parents that have different forms of

the same trait

Crossbreeding

• mating two distinct breeds or varieties of the same species

1. Healthier and live longer

Diversity

• Wide variety of traits in dividuals from the same population