Across
- 2. a poisonous substance
- 7. protective layer of fat that keeps sea mammals warm
- 8. capable of producing desired results without waste
- 9. baby whales
- 10. how mothers feed their babies
- 11. area of focus
- 12. the tissue forming the outer covering of the human body
Down
- 1. if something is upsetting it is __________
- 3. studious inquiry
- 4. your heart and lungs are _______
- 5. a room for a baby
- 6. life forms