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BJU Life Science 15

Bob Jones Life Science - Chapter 15

QuestionAnswer
innate behavior An action or reaction that an animal is born with, such as reflexes and instincts
reflex An immediate, involuntary response to a change in the environment
instinct A complex innate behavior
migration The instinctive, long-distance, seasonal movement of animals from one area to another.
pheromone A chemical released by animals that influences the behavior of other animals of the same species
learned behavior An action or reaction that is learned by experience and is often motivated by reward or punishment
intelligent behavior An action marked by thought, analysis, communication, or the use of tools or symbols
egg A female gamete; an embryo surrounded by a protective shell
sperm A male gamete that is usually able to move by itself and is smaller than the female gamete of the same species
ovary In plants, the part of the pistil containing ovules and eventually maturing into a fruit surrounding the seeds; in animals and humans, the female reproductive organ that produces eggs
testis The male reproductive organs that produce sperm
external fertilization The union of a sperm and ovum outside the parent organisms' bodies
internal fertilization The union of a sperm and ovum within the female parents' body
incubation The maintaining of the conditions necessary to hatch an egg
embryo In plants, the immature plant within a seed; in animals, the developmental stage of young before hatching or birth
uterus A structure in which an embryo develops in the mother until it is born; the womb
gestation The period when an organism is developing inside the mother's uterus; pregnancy
Created by: heidio