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Science 7-PRETEST-Q2


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40 questions
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  • Q1

    Which of the different types of nerves or neurons are responsible for carrying the

        the impulse from the sense organs to the spinal cord or brain?


    Motor neuron

    sensory neuron

    Unicellular Neuron

  • Q2

    Which of the following is the main organ of the nervous system?

    sensory neurons

    spinal cord


    motor neurons

  • Q3

    Blood is the liquid part of the circulatory system. Which is the main work of the blood?

    It supplies nutrients and air to the body cells with the materials they need for nourishment and repair.

    It controls all the body's activity and emotions.

    It digests food needed by the body.

    It serves as a framework and allows movement of the body.

  • Q4

    The main function of the human heart is to pump blood throughout the body. Which of its parts pumps deoxygenated blood to the heart?

    right atrium

    left ventricle     

    right ventricle

    left atrium      

  • Q5

    Nostrils are the opening into the nasal passages that are lined with hairs called cilia. Why are cilia important?

    It warms up the dust present in the air.

    It dries up the dust present in the air

    It filters the dust present in the air.

    It moistens the dust present in the air.

  • Q6

    Our throat is divided into two separate tubes, the windpipe, and the food pipe. What prevents food from entering the windpipe?





  • Q7

    The digestive system breaks down food which serves as a good source of energy needed by our body. Which are the correct pathways of food in the digestive system?

    mouth—esophagus—stomach—small intestines—large intestine—rectum —anus

    esophagus—mouth—large intestine—small intestines—anus—rectum

    esophagus—mouth—small intestines—anus—rectum-large intestine

    mouth—esophagus—stomach—small intestines—anus—rectum

  • Q8

    How does the skin regulate body temperature in normal conditions?

    It retains water

    It produces vitamin

    It increases sweat production

    It regulates fat content in the skin.

  • Q9

    What do you call the outermost layer of the human skin that protects the body?



    hair follicles


  • Q10

    What is the function of the ribcage?

    It protects the spinal cord.

    It protects and covers the lungs.

    It protects the stomach.

    It protects the heart and lungs.

  • Q11

    How does the skin protect muscles and bones?

    It covers the muscles and the bones.

    It helps the bones and muscles to move.

    It provides nutrients to bones and muscles.

    It absorbs the excess fats of muscles.

  • Q12

    Muscles give the body shape and mass. Which of the following is another function of the muscles?

    Smooth muscles hold food in the digestive system.

    Muscles protect and coordinate with bones for movement.

    The nerves are held by the muscles for protection.

    Muscles work independently to move parts of the body.

  • Q13

    Which of the following activities does not show that a message is being carried by the nerve cells to the muscles?

    watching the news on the television

    sweeping the yard

    mopping the floor    

    washing the dishes

  • Q14

     What does the skin do as the first line of defense of the body?

    It makes us feel the pain and pressure of things around us.

    It acts as protection from the hot and cold weather.

    It gives shape to the body.

    It is a source of vitamin D for bones.

  • Q15

    What bodily reaction maintains our body temperature when the environment is hot?

    The brain sends a message to the skin causing the muscles to contract and cool the body.

    The skin starts sweating, releasing water that evaporates and cools the skin.

    Heat receptors in the skin send a message to the brain which results in sweating.

    The muscles in the skin contact and send messages to the brain.


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