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ch 8 Life

Quiz by Kimberly Dendy

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20 questions
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  • Q1
    Sarah decides to test how the evaporation of rubbing alcohol and water affect temperature. She wets one paper towel with water and another with rubbing alcohol. She leaves a third paper towel dry. She wraps each paper towel around a different thermometer and places it under a fan. Which will cool the fastest?
    paper towel
    Rubbing Alcohol
  • Q2
    After playing soccer for one hour, Ana is hot. Luckily, her skin produces sweat, which contains water and salt. How does Ana's skin keep her body cool?
    Waste salt is removed from the body in sweat.
    salt traps heat near the skin
    2water keeps the skin from getting too dry.
    Evaporation of water removes heat from the body.
  • Q3
    Vaccines are used to prevent illness. Most vaccines are given as injections or shots. Before a doctor gives a patient a shot, the doctor wipes the skin with rubbing alcohol. What is the mainreason for wiping off the skin?
    to prevent pain
    to prevent bleeding
    to prevent swelling
    to prevent infection
  • Q4
    What part of the human body serves the same purpose as the wires of a security camera linked to the computer? The computer acts as the brain of the system.
  • Q5
    Which object performs a function similar to that of the human body's skin?
    telephone wire
    camera lens
    astronaut suit
    house frame
  • Q6
    A Venus' flytrap has trigger hairs that can sense when a insect lands on its lobes, or leaves. Which statement best sxplains how this differs from the sense of touch in animals?
    Animals do not need their sense of touch to catch food
    Animals do not have hairs that can sense things
    Animals use sensory hairs to taste the food as well.
    The Venus' flytrap does not have a brain to process the information
  • Q7
    Ears are used to help us hear. Which specialized cells are found in ears?
    taste buds
    rods and cones
    hair cells
  • Q8
    Plants and animals have highly organized systems. Which of these shows the level of complexity, from simplest to most complex?
    organism- organs- organ systems
    organ systems- organism- organs
    Organs- organ systems- organism
    Organ- Plant- Exoskeleton
  • Q9
    What happens when food goes into your stomach?
    the food is completely digested and absorbed into the bloodsteram
    food is stored, but no digestion occurs
    acidic juices mix with the food.
    the food is moved into the large intestine
  • Q10
    The digestive system contains several organs working together. Some organs, called accessory organs, never contain food, but are still important to the process of digestion. Which organs are accessory organs to digestion?
    small intestine and large intestine
    esophagus and stomach
    kidneys and bladder
    liver and pancreas
  • Q11
    Which organism below excretes uric acid along with digestive wastes as a thick, white waste product?
    jelly fish
  • Q12
    The urinary system plays an important role in regulating the human body. What does the urinary system regulate?
    bacteria levels
    undigested food
    oxygen levels
    fluid levels
  • Q13
    Which of the following organs is part of the female reproductive system?
  • Q14
    Which organ of the digestive system mashes food and mixes it with acid?
    large intestine
    small intestine
  • Q15
    Body systems work together to supply cells with nutrients and oxygen and remove wastes. Which list shows the path of oxygen entering the body?
    air - respiratory system - circulatory system - cells

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