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Animal Life Processe
7th Grade Science Chapter 10
| Question | Answer |
|---|---|
| molting | process in which an arthropod sheds their exoskeletons and produce new ones |
| cartilage | a tissue that is more flexible than bone |
| joint | place where two or more parts of a skeleton meet |
| muscle | tissues that contract or relax to create movement |
| nervous system | allows animals to detect signals in their environments, process the signals, and react to time |
| stimulus | the signal that causes an animal to react in some way |
| response | is an animal's reaction to a stimulus |
| impulse | in a nerve cell, information travels as an electric message |
| sensory neuron | nerve cells that detect stimuli |
| interneuron | nerve cells that pass information between neurons |
| motor neuron | nerve cells that carry response information to muscles and other organs |
| brain | organized grouping of neurons in the head of an animal with bilateral symmetry |
| neuron | nerve cell with a unique structure for receiving and passing on information |
| water vascular system | a system of fluid-filled tubes that produce suction and enables an echinoderm to grip surfaces and move along |
| swim bladder | an internal, gas-filled sac |
| carnivore | animals that eat only other animals |
| herbivore | animals that eat only plant material |
| omnivore | animals that eat both plant material and other animals |
| filter feeder | animals that live in water and strain their food from the water - baleen whales and clams |
| digestion | process that breaks down food into small molecules |
| digestive system | an organ system that has specialized structures for obtaining and digesting food |
| cellular respiration | the process in which cells use oxygen and digested food molecules to release the energy in food |
| diffusion | particles move from an area of high concentration to an area of low concentration |
| respiratory system | an organ system in which an animal uses to exchange gases with its surroundings |
| circulatory system | an organ system that transports needed materials to cells and takes away wastes |
| larva | immature form of an animal that looks very different from the adult |
| polyp | cnidarian body form that looks like an upright vase |
| medusa | cnidarian body form that looks like an open umbrella |
| external fertilization | fertilization occurs outside of the female's body |
| internal fertilization | fertilization occurs inside of the female's body |
| gestation period | length of time between fertilization and birth |
| amniotic egg | eggs covered with membranes and a leathery shell |
| placenta | organ in which materials are exchanged between the embryo and the mother |
| metamorphosis | process in which animals go through major body changes as the develop from young organisms into adults |
| complete metamorphosis | insect cycle which has four stages: egg, larva, pupa and adult |
| pupa | insect is enclosed in a protective covering and major body changes occurs |
| incomplete metamorphosis | insect cycle that has three stages: egg, nymph and adult |
| nymph | insect stage in which the insect looks like an adult insect without wings |
| tadpole | larva of a frog |
Created by:
dselling
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