Across
- 5. Two body parts (cephalothorax and abdomen), four pairs of legs, no antennae (e.g., spiders, scorpions)
- 7. All chemical processes inside an organism that maintain life
- 9. Hard exoskeleton, two pairs of antennae, mostly live in water (e.g., crabs, lobsters)
- 11. Action by an organism or part of an organism that causes a change in position or place
- 13. Warm-blooded, have hair or fur, give birth to live young, feed young with milk
- 14. Permanent increase in size and dry mass
- 15. Organisms with scales, fins, gills for breathing
- 18. Many body segments, each with one or two pairs of legs (e.g., centipedes, millipedes)
- 21. Plants with leaves called fronds, reproduce by spores (not seeds), no flowers
- 22. The biological process that produces new individuals of the same kind
- 24. Three body parts (head, thorax, abdomen), three pairs of legs, usually wings (e.g., ants, butterflies)
- 25. Cold-blooded, dry scaly skin, most lay leathery eggs on land
Down
- 1. Ability to detect and respond to changes in the environment (internal or external)
- 2. Removal of waste products of metabolism (e.g., carbon dioxide, urea) and substances in excess
- 3. Animals with a backbone
- 4. A group of organisms that can reproduce to produce fertile offspring
- 6. Organisms with moist skin, live on land and in water, lay eggs in water
- 8. Warm-blooded organisms with hair, give birth to live young, feed milk
- 10. A change in the environment that causes a response
- 12. Organisms with jointed legs and exoskeleton
- 15. plants Plants that reproduce by seeds inside flowers
- 16. Organisms with dry scaly skin, lay eggs with soft shells on land
- 17. Chemical reactions in cells that break down nutrient molecules and release energy
- 19. Intake of food and other nutrients for energy, growth, and development
- 20. Warm-blooded, have feathers, beaks, lay eggs with hard shells
- 23. Organisms with feathers, beaks, lay eggs with hard shells