7th Grade Life Science

49 Questions | Total Attempts: 2399

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7th Grade Life Science - Quiz

Life science helps us study all living organisms in our world. Being that living organisms have a lot to be studies for example their habitats, adaptations and threats to life the course can be a little wide. The quiz below covers all the topics of life science for 7th grade. Give it a try.


Questions and Answers
  • 1. 
    What will happen in a Colorado ecosystem if all the coyotes are destroyed. Answer in at least 2 sentences.
  • 2. 
    Bacteria can be seen best at what power on our microscopes?
    • A. 

      100X

    • B. 

      400X

    • C. 

      50X

    • D. 

      They can't be seen with our microscopes.

  • 3. 
    The "brain" of a cell is the __________.
    • A. 

      Nucleus

    • B. 

      Cell membrane

    • C. 

      Cell wall

    • D. 

      Ribosome

  • 4. 
    Plant cells have 2 things that animal cells don't have. What are they?
    • A. 

      Nuclei and chromosmes

    • B. 

      Cell membrane and cytoplasm

    • C. 

      Cell wall and chloroplasts

    • D. 

      Plant and animal cells have the same structures

  • 5. 
    On a microscope, the diaphragm controls _____________.
    • A. 

      The size of the specimen

    • B. 

      The focusing

    • C. 

      How close the lens is to the slide

    • D. 

      The amount of light

  • 6. 
    The microscope part that holds the lenses and rotates is called the ________.
    • A. 

      Coarse adjustment knob

    • B. 

      Nosepiece

    • C. 

      Eyepiece

    • D. 

      Stage

  • 7. 
    Green plants take in _____ and produce ______.
    • A. 

      Co2, O2

    • B. 

      O2, Co2

    • C. 

      H2O, CO

    • D. 

      C6H12O6, H2O

  • 8. 
    3 bones that support the body are ______.
    • A. 

      The cranium, tarsals, and patella

    • B. 

      The scapula, sternum, and tibia

    • C. 

      The carpals, radius, and humerus

    • D. 

      The femur, vertebra, and ribs

  • 9. 
    The mandible can be found _______.
    • A. 

      In the chest

    • B. 

      In the lower leg

    • C. 

      In the jaw

    • D. 

      In the upper arm

  • 10. 
    The function of cartilage is to ______.
    • A. 

      Protect the ends of bones

    • B. 

      Make bones move more easily

    • C. 

      Both

    • D. 

      Neither

  • 11. 
    How are chicken wings different than human arms?
    • A. 

      Chickens have more phalanges.

    • B. 

      Human joints bend more easily.

    • C. 

      Chickens have more wrist bones.

    • D. 

      Chickens have fused phalanges.

  • 12. 
    The muscles that work as a pair to move the arm are the ______.
    • A. 

      Gastrocnemius and pectorals

    • B. 

      Bicep and tricep

    • C. 

      Masseter and trapezius

    • D. 

      Hamstring and quadriceps

  • 13. 
    Which of these is NOT an example of a smooth muscle?
    • A. 

      Deltoid

    • B. 

      Diaphragm

    • C. 

      Iris

    • D. 

      Intestine

  • 14. 
    Which organism causes athlete's foot?
    • A. 

      Virus

    • B. 

      Bacteria

    • C. 

      Fungus

  • 15. 
    On agar, bacteria look ________.
    • A. 

      Fuzzy or furry

    • B. 

      Flat and colorful

    • C. 

      Like tiny mushrooms

  • 16. 
    The layer of skin that bleeds when you cut it is the _______.
    • A. 

      Epidermis

    • B. 

      Dermis

    • C. 

      Fat layer

  • 17. 
    The most damaging sun rays are ____________.
    • A. 

      Visible light

    • B. 

      Infrared

    • C. 

      UV

  • 18. 
    Food stays in the stomach for about _________.
    • A. 

      12 hours

    • B. 

      15 minutes

    • C. 

      2 days

    • D. 

      6 hours

  • 19. 
    The most important stage of digestion (absorption of nutrients) takes place in the _____.
    • A. 

      Large intestine

    • B. 

      Small intestine

    • C. 

      Stomach

    • D. 

      Colon

  • 20. 
    Constipation results when ______________.
    • A. 

      Food moves too rapidly through the intestines

    • B. 

      Food moves too slowly through the intestines

    • C. 

      Bacteria are present

  • 21. 
    Normal human heart rate is about _______ beats per minute.
    • A. 

      120

    • B. 

      100

    • C. 

      60

    • D. 

      20

  • 22. 
    The large artery that carries blood to the brain and body is called the ______.
    • A. 

      Aorta

    • B. 

      Ventricle

    • C. 

      Capillary

    • D. 

      Vena cava

  • 23. 
    The most muscular part of the heart is the ____________.
    • A. 

      Septum

    • B. 

      Right side

    • C. 

      Left side

    • D. 

      Bottom

  • 24. 
    The small vessels that connect arteries and veins are called _________.
    • A. 

      Arterioles

    • B. 

      Valves

    • C. 

      Vessels

    • D. 

      Capillaries

  • 25. 
    Veins carry blood that is ___________.
    • A. 

      Low in oxygen

    • B. 

      High in oxygen

    • C. 

      Going to the brain

    • D. 

      Going to the organs

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