| A | B |
| consumer | Organism that cannot make its own food |
| carnivore | animal that eats other animals |
| herbivore | animal that eats plants |
| omnivore | animal that eats both plants and animals |
| adaptation | inherited trait or behavior that allows an animal to successfully survive in its environment |
| reasons why animals move | finding shelter, a mate, food, and escape from danger |
| producer | organism that makes its own food |
| sight, smell, and hearing | senses used to help animals find food |
| mouth, esophagus, liver, stomach, intestines | organs used in digestion |
| invertebrate | an animal without a backbone |
| vertebrate | an animal with a backbone |
| gill slits/hollow nerve cord | all chordates had these at one time |
| exoskeleton | a support system outside of the animal's body |
| endoskeleton | a support system inside an animal's body |
| radial symmetry | central point- no distince right or left side |
| bilateral symmetry | distinct right and left side |
| asymmetrical | no recognizable symmetry |
| sexual reproduction | two parents, egg and sperm |
| asexual reproduction | one parent-no eggs and sperm exchanged |
| fertilization | sexual reproductive process for animals-egg and sperm unite |
| internal fertilization | fertilization that takes place inside the mother's body-fewer eggs produced, greater chance for survival |
| external fertilization | fertilization outside the mother's body- many eggs released, less chance for survival |
| metamorphosis | changes in form that organisms undergo in their life cycles |
| complete metamorphosis | 4 stages-egg, larva. pupa, adult- very distinct changes |
| incomplete metamorphosis | 3 stages-egg, nymph, adult- changes not as distinct |
| body structure adaptations | beaks, feet, tongues, |
| cellular respiration | oxygen combines with digested food to release energy from chemical bonds in food |
| carbon dioxide | waste product from cellular respiration |
| behavioral adaptations | barking, shrieking, reactions to changes in environment |
| imprinting | animal instinct where the animal becomes attached to another organism right after birth |
| metabolism | total of all chemical chanages that take place in an organism |
| regeneration | formation of a missing body part-can be a form of asexual reproduction |
| reproduction | ability of an organism to produce more organisms of the same kind so species will survive |