A student is required to record observations of as many structures as possible in a plant leaf. The student first observes the leaf with only her eyes and then with a microscope.The student claims that a microscope is better to observe the cells in the leaf.

Which evidence would best support the student's claim?

• The cells of the leaf are too dark to be seen without the special lighting a microscope provides.

• The cells of the leaf are too small to be seen without the magnification a microscope provides.

• The cells of the leaf are too close together to be seen without using a microscope.

• The cells of the leaf are too far away to be seen without using a microscope.

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NGSS.MS-LS1-1

What do all living organisms have in common?

• They all reproduce sexually.

• They are all made of cells.

• They all need blood to stay alive.

• They are all made from chlorophyll.

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The picture shows a piece of technology that has helped scientists.

Which of the following best explains how this piece of technology has helped scientists?

• It has helped scientists to see other planets.

• It has helped scientists to see other moons.

• It has helped scientists see very large objects.

• It has helped scientists see very small objects.

One characteristic of all living things is that they are made of units. What are these units called?

• tissues

• cells

• organs

• organisms

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NGSS.MS-LS1-1

Which of these pictures most likely shows a plant magnified under a microscope?

• 
• 
• 
• 

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NGSS.MS-LS1-1

Which statement is correct?

• Most single-celled organisms can be viewed with a magnifying glass.

• People can see cells in blood if it is viewed under a microscope.

• People can see cell walls through a microscope, but not a cell's nucleus.

• The cell nucleus looks larger under the microscope than the cell membrane.

According to the cell theory, a flowering plant, a coniferous plant, and a variety of green algae are all composed of

• cell-like structures.

• bacteria

• cells

• viruses

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Allie needs to draw a picture of cell for class. What should she use to make a tiny cell look much larger?

• microscope

• telescope

• magnifying glass

• binoculars

Which is NOT something a scientist could observe using a microscope?

• yeast cells budding into new cells

• the organs of an organism

• a thin slice of onion tissue

• the cell walls of a plant leaf

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NGSS.MS-LS1-1

How are the Florida chorus frog and the manatee similar?

• Both animals undergo metamorphosis.

• Both animals have specialized cells.

• Both animals reproduce by laying eggs.

• Both animals feed primarily on insects.