Classes of Animals
Vertebrates
Animals that have a backbone or spinal cord (fish, birds, mammals, amphibians and reptiles). They can either be cold or warm blodded.
Life cycle of Reptiles
Egg- young adult- adult
Life cycle of Birds
Egg-Chick-adult
Life cycle of Amphibian
Egg-tadpole-young adult-adult
Life cycle of Fish
Egg-young adult-adult
Characteristics of Warm-Blooded Animals
Warm-blooded animals are able to regulate their internal temperature. They can sweat or pant to cool off and have fur and feathers to help keep them warm. They are endothermic-meaning inside heat.
Metamorphosis
(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages. (in an amphibian-the changing of a tadpole into a frog).
Fish
1. Breathe underwater using gills not lungs. 2. Live in water. 3. Have scales and fins. 4. Lay many eggs. 5. Cold-blooded
Birds
1. Have feathers and wings. 2. lay eggs. 3. have 2 legs. 4. ear holes instead of ears. 5. warm-blooded.
Mammals
1. Have hair or fur. 2. give birth to live young. 3. mammal mothers nurse their young with milk. 4. have lungs and need air to breather. 5. warm-blooded
Reptiles
1. Have scales and not fur. 2. Have dry skin. 3. Usually lay eggs and sometimes live young. 4. ear holes instead of ears. 5. 4 legs or no legs. 5. Cold-blooded.
Amphibians
1. Live on land and water. 2. Have webbed feet. 3. breathe with lungs and gills. 4. moist, smooth skin (no hair or fur). 5. 4 legs (sometimes none). 6. Lay many eggs 7. cold-blooded
Characteristics of Cold-Blooded Animals
A cold-blooded animal cannot maintain a constant body temperature. The temperature of their body is determined by the outside surroundings. Cold-blooded animals will move around during the day between the shade and the sun to warm-up or cool down. They are ectothermic-which means outside heat.
Land Mammals
Have 4 legs and ears that stick out.
Life cycle of Mammal
Live birth-baby-young adult-adult