Across
- 4. the interaction between animals of the same species
- 6. when a fertilized egg cell divides into many cells to form an embryo
- 11. they are made up of many cells
- 15. an organism that eats other organisms or organic matter
- 16. is a fixed object that animals use to find their way
- 17. an area that is occupied by one animal or a group of animals that do not allow other members of the species to enter
- 18. a part of an organism breaks off and develops into a new organism
- 19. behavior an inherited behavior that does not depend on the environment or experience
- 21. a plant or animal at an early stage of development
- 22. when animals have a certain behavior that help them find a mate
Down
- 1. a period of inactivity and lowered body temperature that some animal undergo in summer as a protection against hot weather and lack food
- 2. a internal control of an animals natural cycles
- 3. an a animal with a backbone
- 5. a period of inactivity and lowered body temperature that some animals undergo in the winter as a protection against cold weather and lack of food
- 7. to travel from one place to another
- 8. a transfer of a signal or message from one animal to another that results in some type of response
- 9. an animal with no back bone
- 10. the animal being eaten
- 12. behavior a behavior that has been learned from experience
- 13. they have a nucleus
- 14. a animal like a bird fly's for a specific reason and animals run away from enemies
- 15. a biological daily cycle
- 20. animals that eat other animals
