SSA Untested - Pretest

In a living organism, what is an organ?

• a structure composed of a number of tissues that work together to perform a specific task

• a group of similar cells that perform a common function

• functional unit, or building block, of all organisms; smallest unit that can carry on the activities of life

• the shell or skin of an organism

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What are the most basic building blocks of all organisms?

• organs

• cells

• tissue

• blood

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Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?

• cells → tissues → organs → organ systems → organism

• cells → organ systems → organs → tissues → organism

• cells → organs → organ systems → tissues → organism

• cells → organs → tissues → organ systems → organism

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What is the most basic unit of life?

• Cell

• Atom

• Molecule

• Organ

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15. From least complex to most complex, the levels of organization in an organism is as follows:

• atoms → molecules → cells → tissues → organs → organ systems → organism

• atoms → cells → tissues → molecules → organs → organ systems → organism

• cells → atoms → molecules → tissues → organ systems → organs → organism

• organism → organ systems → organs → tissues → cells → molecules → atoms

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Label from largest to smallest

a

b

c

d

e

f

g

Cells

Organs

Organisms

Tissues

Organ Systems

Atoms

Molecules

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The timeline below shows some major discoveries in biology.

Which of the following theories did these discoveries lead to?

• the germ theory

• the cell theory

• the theory of evolution

• the atomic theory

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Which of the following statements are part of the cell theory?

• All living things are made up of one or more cells.

• Cells are the basic units of living things.

• All cells come from pre-existing cells.

• all of these

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The diagram below shows four different living organisms.

Which of the following is a component of cell theory that is supported by the diagram?

• • All cells are spontaneously generated.

• • All living organisms are composed of cells.

• • All cells have the same shape and function.

• • Cells are the basic units of life.

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Many people have a tendency to think that heat and temperature are the same thing. However, this is not true. Heat describes:

• energy that flows from cooler objects to warmer objects.FLFL

• the average amount of energy possessed by an object due to the motion of its particles.

• the average amount of energy possessed by an object due to the potential energy stored in its bonds.

• energy that flows from warmer objects to cooler objects.

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