2018 Grade 8 Intermediate-Level Science Test Questions 1-10 Question Preview (ID: 59897)

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Which type of cell uses energy to carry out life processes?

a) plant cell, only

b) animal cell, only

c) both a plant cell and an animal cell

d) neither a plant cell nor an animal cell

Which level of organization is identifi ed by X?

a) cell

b) tissue

c) organ

d) organ system

A student compared these diagrams. The student found that each of these organisms had a heart to pump blood. Which statement is supported by the student’s findings?

a) Some organisms are composed of one cell, while others are multicellular.

b) Many multicellular animals have similar organs and specialized systems.

c) The circulatory system in most organisms removes solid wastes from their bodies.

d) All animals have identical circulatory systems.

This life cycle represents the process of

a) separation from parent

b) asexual reproduction

c) metamorphosis

d) extinction

Water and carbon dioxide are waste products released as a direct result of

a) asexual reproduction

b) mechanical digestion

c) natural selection

d) cellular respiration

The primary function of a plant’s roots is to

a) absorb water

b) perform photosynthesis

c) produce seeds

d) exchange gases

Genes are a part of a

a) cell wall

b) chromosome

c) hormone

d) vitamin

Compared to the amount of genetic information contained in a normal human body cell, the amount contained in a normal human sperm cell is

a) the same

b) twice as much

c) one-half as much

d) one-fourth as much

Which type of information is organized by this chart?

a) energy flow in an ecosystem

b) population growth for pea plants

c) the number of chromosomes in an organism

d) the passing of a trait from one generation to another

A change in an animal’s DNA, leading to a variation in a species, is called

a) a mutation

b) an infection

c) selective breeding

d) sexual reproduction

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