Across
- 1. a fertilized egg cell divides into many cells to form an embryo they undergo
- 4. a period of inactivity in summer
- 5. to travel from one place to another
- 6. animals being eaten
- 7. sending a visual message
- 10. a behavior that is learned
- 11. behavior that doesn’t depend on learning or experience
- 13. interaction among animals of the same species
- 15. an organism that eats other organisms
- 19. made of many cells
- 21. a group of tissue that carry out a special function
- 22. daily cycles
- 23. internal control of an animals natural cycle
- 24. an area that is occupied
- 25. chemicals that animals use to communicate
- 26. a collection of similar cells
Down
- 2. an animal that doesn’t have a back bone
- 3. a period of inactivity in winter
- 8. a group of lions
- 9. an animal that has a backbone
- 12. a way an animal acts
- 14. a signal that travels from one animal to another
- 15. a behavior to help animals mate
- 16. part of an organism that breaks off and develops into a new organism
- 17. an organism at an early stage of development
- 18. fixed objects that animals use to find its way
- 20. animals that eat other animals