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2013 Grade 8 Life Science Questions
Test Description: Sample Life Science questions from the 2013 Grade 8 Science test
Instructions: Answer all questions to get your test result.
1) A cell's chromosomes contain
A
chlorophyll
B
sperm
C
eggs
D
genes
2) Which process is a cause of variation in a species?
A
cellular respiration
B
sexual reproduction
C
metamorphosis
D
regulation
3) In which part of a plant cell does photosynthesis occur?
A
nucleus
B
cell membrane
C
cell wall
D
chloroplast
4) Which sequence represents the correct levels of organization for multicellular organisms?
A
organ system > organ > cell > tissue
B
cell > organ > tissue > organ system
C
tissue > organ > cell > organ system
D
cell > tissue > organ > organ system
5) Which gas is transported by the circulatory system in humans and is used by cells during respiration to release energy stored in food?
A
nitrogen
B
hydrogen
C
carbon dioxide
D
oxygen
6) What eventually happens to a species when the environment changes and the organisms do NOT adapt?
A
development
B
classification
C
regulation
D
extinction
7) Abnormal cell division may result in
A
cancer
B
tissue repair
C
disease prevention
D
metamorphosis
8) The bacteria and fungi that break down the plant can animal materials and puts nutrients back in the soil are classified as
A
predators
B
decomposers
C
consumers
D
producers
9) Herbivores obtain most of their energy by
A
producing sugar
B
consuming animals
C
consuming plants
D
absorbing sunlight
10) A biological community is made up of all the
A
members of a species on Earth
B
populations living in an area
C
environments on Earth
D
natural resources present in an area
*select an answer for all questions
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