7th Grade Life Science
(101).jpg "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.
- 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
Questions: 22 | Attempts: 7323 | Last updated: Mar 22, 2022
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Sample QuestionThe passing of physical characteristics from parent to offspring is __________.
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Sample QuestionThe stage of the cell cycle during which the cells nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell
Questions: 7 | Attempts: 6620 | Last updated: Mar 21, 2022
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Sample QuestionAll animal and plant cells are the same.
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