Animal Diversity. Animals are many- celled organisms that are made up of different kinds of cells.
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Transcript of Animal Diversity. Animals are many- celled organisms that are made up of different kinds of cells.
Animal Cells
• Nucleus and specialized structures
• Organized to form systems
• Enable animals to perform different functions:
–Sensing the environment
–Getting rid of wastes
–reproducing
• Most animals can move from place to place to
find food/water, shelter, mates, and to protect
themselves from predators.
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
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
Crossbreeding
• mating two distinct breeds or varieties of the same species
1. Healthier and live longer