| A | B |
|---|
| aggression | a threatening behavior that one animal uses to gain control over another animal |
| amniotic egg | an egg with shell and internal membranes that keep the embryo moist |
| behavior | the manner in which an organism reacts to changes to its internal conditions or its environmnet |
| carcadian rhythm | a behavioral cycle that occurs over a period of about one day |
| complete metamorphosis | a type of metamorphosis with four complete stages: egg, larva, pupa, adult |
| conditioning | the process of learning to connect a stimulus or a response with a good or bad outcome |
| courtship behavior | the behavior of males and females of the same species engage in to prepare for mating |
| exrternal behavior | when the egg is fertilized outside the female's body |
| gestation period | the time between the fertilization of the egg and the birth of the mammal |
| hibernation | the animal's state of highly reduced activity during the winter |
| imprinting | a learned behavior in which newly hatched birds and new born mammals follow the first moving object they see |
| incomplete metamorphosis | a type of metamorphosis with three stages: egg, nymph, adult |
| insight learning | the process of learning how to solve a problem or doing something by using informaton that is already known |
| instinct | an inborn behavior that an animal performs correctly the first time |
| internal fertilization | when the egg is fertilized inside the female's body |
| larva | the immature form of an amimal that looks very different from the adult |
| learning | the process that leads to changes in behavior based on practice or experience |
| medusa | a cnidarian body form characterized by an umbrella body shape and adapted for a free-swimming life |
| metamorphosis | a process in which an animal's body undergoes major changes in shape and form during its life cycle |
| migration | the regula, seasonal journey of an animal from one environment to another and back again for the purpose of feeding or reproduction |
| nymph | a stage of incomplete metamorphosis that usually resembles the adult insect |
| pheromone | a chemical released by one animal that affects the behavior of another animal of the same species |
| placenta | an organ in most pregnant mammals , including humans, that links the mother and the developing embryo and allows passage of materials between them |
| polyp | a cnidarian body form characterized by an upright vase shape and usuall adapted for a life attached to an underwater surface |
| pupa | the third stage of complete metamorphosis in which larvae developes into an adult insect |
| society | a group of closely related animals of the same species that work together in a highly organized way for the benefit of the group |
| tadpole | the larval form of a frog or toad |
| territory | an area that is occupied or defended by an animal or group of animals |
| trial-and-error learning | a type of learned behavior in which an animal learns to behave in a certain way through repeated practice, to receive a reward or avoid punishment |
