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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
sexual reproduction
B
regulation
C
metamorphosis
D
cellular respiration
3) In which part of a plant cell does photosynthesis occur?
A
nucleus
B
cell wall
C
cell membrane
D
chloroplast
4) Which sequence represents the correct levels of organization for multicellular organisms?
A
tissue > organ > cell > organ system
B
cell > organ > tissue > organ system
C
organ system > organ > cell > tissue
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
classification
B
regulation
C
development
D
extinction
7) Abnormal cell division may result in
A
metamorphosis
B
disease prevention
C
tissue repair
D
cancer
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
producers
C
consumers
D
decomposers
9) Herbivores obtain most of their energy by
A
absorbing sunlight
B
consuming plants
C
producing sugar
D
consuming animals
10) A biological community is made up of all the
A
populations living in an area
B
members of a species on Earth
C
environments on Earth
D
natural resources present in an area
*select an answer for all questions
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