Animal Movement Crossword Puzzle

QUESTIONS LIST:

• skeleton: framework that supports an animal
• molting: arthropods shed their skeleton to allow for growth
• cartilage: substance in endoskeleton more flexible than bone
• seastar: this organism has endoskeleton with plates that have calcium
• shark: this organism has endoskeleton made of cartilage
• bear: this organism has endoskeleton made of bone and cartilage
• earthworm: this type of worm has skeleton without hard parts
• joint: place where two parts of skeleton meet
• muscle: tissue that contracts and relaxes to create movement
• nervous system: receives info from environment & creates response
• stimulus: a signal that causes an animal to react
• response: animal's reaction to a signal from environment
• neuron: a nerve cell that receives info and passes it on
• sensory neuron: nerve cells that detect stimuli
• interneuron: nerve cell that passes information between nerve cells
• motor neuron: nerve cell that carries info to muscles and organs
• impulse: information that travels in nerve cell as an electrical signal
• brain: organized group of neurons in the head
• skeletal system: works with muscular and nervous system for movement
• water vascular system: fluid filled tubes in echinoderms for moving