2021 (v202) Grade 8 Intermediate-Level Science Test Questions 1-10 Question Preview (ID: 59888)


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In addition to cytoplasm, most human body cells also have
a) In addition to cytoplasm, most human body cells also have
b) chloroplasts and a cell membrane
c) genetic material and a cell wall
d) genetic material and a cell membrane

When a plant dies, the materials in the plant
a) are lost forever
b) usually become fossils
c) are recycled by decomposers
d) react with carbon dioxide

Which sequence represents increasing levels of organization in the human body?
a) organ → organ system → cell → tissue
b) organ → cell → organ system → tissue
c) cell → tissue → organ → organ system
d) cell → organ → tissue → organ system

The breaking down of food in the human digestive system is both chemical and
a) geothermal
b) mechanical
c) electrical
d) potential

Which substance is produced during cellular respiration?
a) oxygen
b) sugar
c) carbon dioxide
d) vitamins

Which human organ system removes liquid and gaseous waste from the body?
a) endocrine
b) excretory
c) nervous
d) muscular

Chemicals that regulate and control human body functions are known as
a) fats
b) hormones
c) carbohydrates
d) elements

The X in the sequence most likely represents a
a) gene
b) mutation
c) clone
d) protein

The sum of all chemical reactions in an organism is called
a) metabolism
b) exercise
c) adaptation
d) respiration

Which process takes place within chloroplasts?
a) metamorphosis
b) photosynthesis
c) sexual reproduction
d) cellular division

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