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Sci 7th lesson 4

QuestionAnswer
Camouflage Blending in with surroundings to hide from predators
What is HOMEOSTASIS It is the process for the inside of the body to maintain a stable condition when the external environment changes. For example- when it gets too hot a dog pants to cool himself and gain normal temperature
What is FEEDBACK Feedback is a cycle of events. It can be positive or negative feedback. Negative feedback is when the body senses a change and it’s internal environment and activates processes to slow or prevent the change. For example, when the dog is panting, that is n
Sensory receptors These are specialized cells in an animals nervous system. They help an animal gather information about its environment.
Stimulus These are different environmental messages, which caused the sensory receptors to respond. For example, a stimulus could be light heat or pressure.
Neurons When a sensory receptor detects a stimulus, it sends the information to the brain in the form of electrical energy. This information travels through specialized cells called neurons.
Transmitting through neurons One group of neurons carries information from sensory receptors to the brain. Another group of neurons carries information from the brain to the various parts of the body telling them how to respond. See the picture on page 101.
What are the three types of sensory receptors? Mechanical receptors, chemical, receptors, electromagnetic receptors
Mechanical receptors These detect pressure, movement, and tension
Chemical receptors These detect chemical signals such as odors and tastes
Electromagnetic receptors These detect electromagnetic radiation such as light.
What are the major areas of the human cerebral cortex? See the picture on page 103 Frontal lobe, parietal lobe, temporal love, occipital lobe
Behavior A set of actions taken by an organism in response to stimuli is called behavior. Animals perform behaviors to survive. Some behaviors are innate. This means they do not need to be learned. Such as a newborn whale knows how to swim. Other behaviors are dev
What is hibernation? Hibernation is a behavior that allows animals to survive in their habitats during the winter months when food may be scarce. This is a time when animals store, body fat when food is plentiful.
Memory Memory allows an animal to respond to its environment, more efficiently. For example, an animal can remember the location of food source, which makes it easier for them to find it the next time they go looking.
Created by: Pennags
 

 



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