Relating to birds

a male domestic fowl is called

relating to the heart and blood vessels

the gradual development from a simple to more complex form is called

an animal that can NOT generate its own heat is called

the part of your brain that helps regulate your temperature is called?

Select the main categories of animals that are warm blooded and have 4 chambered hearts

what special adaptation to the lungs of birds help them fly?

Structures found in different species derived from the same embryonic/ancestral origin and are similar in basic structure and development are called

What are some common similarities that all embryos share? select ALL that apply

These bones are an example of homologous structures because.... (select ALL that apply)