Can anyone help me with 4 questions from science?

Question

How are animals classified into different groups?

Based on the classification key, how do birds and mammals differ?

Based on the classification key, how do reptiles and amphibians differ?

Based on the classification key, how would you classify yourself?

Answer 1

Look at the classification key.

Answer 2

Kingdom Phylum Class Order Family Genus Species

Birds respiratory systems flow in direction.

Birds lay eggs

Birds have feathers

Birds have hallow bones

Reptiles can live without needing to be in water (amphibians cant)

Amphibians morph durring the first stage of their lifecycle (reptiles don't)

Reptiles have a semi-four chambered heart, amphibians only have three

You are a human mammal that does't have feathers, doesn't lay eggs, has a complete four chambered heart, can't fly, and has solid bones.