camouflage - A color or pattern on an animal's body that helps it blend into its environment, reaction time - How quickly an organism responds to something, nervous system - Made up of our head, spinal cord, and nerves. It tells us how to act and react to things., brain - The most important internal structure. It is part of the nervous system., adaptation - Physical features or behaviors that help organisms survive in an environment., nerves - The pathway that signals are sent to and from the brain., internal structures - Structures located on the inside of the body., external structures - Structures located on the outside of the body., senses - Animals use these (sight, sound, touch, taste, smell) to notice things in their environment., herbivore - Animals that eat only plants., carnivore - Animals that eat only meat., stem - transports water and minerals to the leaves, roots - absorb water and minerals from the soil, leaves - traps energy from the sun, flowers - supports reproduction of the plant,

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