Name _______________________________________ Date ______________
Gen Bio 2 Lab #9: Amphibians, Reptiles, and Birds, oh my…
1. Endothermic –
2. Ectothermic –
3. Fat bodies –
4. Cloaca –
5. Atrium –
6. Ventricle –
7. 3-chambered heart –
8. 4-chambered heart –
9. Pulmonary circuit –
Procedure 1 Bird Skeleton – Observe the bird skeleton and note the bones of the wings and position of
the pectoral and pelvic girdles. Write 2 sentences about your observations.
Procedure 2 Bird X-rays – Observe the X-Rays of birds. How do they compare to one another? What
differences do you notice?
Procedure 3 Preserved Birds- Observe the preserved bird specimens. Record any thoughts or
Procedure 4 Birds’ nests – What does the structure of the 2 bird nests say about these birds and
Procedure 5 Preserved Reptiles – Observe the preserved specimens of Reptiles. How many of these
have you seen in the wild? Which reptiles do you find most interesting/gross/cool, and why?
Procedure 6 Reptile X-Rays – Observe the X-rays of several reptiles. Note the internal skeleton of the
1) Why does a turtle have bones and an exoskeleton?
2) What do the baby turtle eggs in the X-ray look like?
3) Can you see the dwarf crocodiles in the egg X-ray? What developmental stage are these
Procedure 7 Frog X-Ray – Observe the X-ray of the frog. Record any thoughts or observations.
Procedure 8 Preserved Frogs – Observe the preserved frogs. Record any thoughts or observations.
Procedure 9 Frog Poster – Look at the cool 3D frog poster. Record any thoughts or observations.