Across
- 4. Small, leg-like appendages found on the abdomens of crustaceans, often used for swimming, reproduction, or both.
- 8. The order of reptiles that contains crocodiles and alligators.
- 10. All the different populations of organisms that live and interact in the same area.
- 11. A group of organisms of the same species living in the same area and capable of interbreeding.
- 13. The order of reptiles that contains lizards and snakes.
- 14. Animals that possess both male and female reproductive organs
- 15. A hard external covering or shell that provides support, protection, and structure to the body of an arthropod.
- 16. The middle section of an arthropod's body, located between the head (cephalothorax) and the abdomen, often bearing legs or wings.
- 19. The process by which water is absorbed by plants from the soil, moves through the plant, and then evaporates from the leaves into the atmosphere.
- 20. Hard coverings on the skin of reptiles that help retain water and provide protection
Down
- 1. An egg that has a hard shell and contains fluid, designed for growing on land.
- 2. Animals that have backbones
- 3. A cylindrical form found in cnidarians like sea anemones, with a mouth surrounded by tentacles.
- 5. The process by which arthropods shed their exoskeleton in order to grow, allowing for expansion and development of a new, larger exoskeleton.
- 6. The study of how living organisms interact with each other and their environment.
- 7. The fused head and thorax region found in some arthropods.
- 9. Cannot regulate its own body temperature - "cold-blooded"
- 12. A long, rod-like midline structure that develops in chordates that acts as a central coordinator during chordate development
- 17. Animals that lack backbones
- 18. A large naturally occurring community of flora and fauna occupying a major habitat, such as a forest or desert.