LS1.8

Mr. Erickson is teaching his students about cells. He provides the following description of an organism to the students.
This organism is small in size. It is very simple, and unlike many larger organisms, it does not function as a series of specialized systems.
best describes this organism?

• It completes all life functions with no cells.

• It completes all life functions with one cell.

• It completes all life functions with two cells.

• It completes all life functions with many cells.

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NGSS.MS-LS1-1

Which is an activity that a single-celled organism cannot perform?

• eating

• walking

• reproducing

• removing waste

Which is the best way to classify grasshoppers?

• Grasshoppers are multi-celled organisms because they are made up of one cell that carries out all of their life processes.

• Grasshoppers are single-celled organisms because they are made up of one cell that carries out all of their life processes.

• Grasshoppers are single-celled organisms because they are made up of many cells that carry out all of their life processes.

• Grasshoppers are multi-celled organisms because they are made up of many cells that carry out all of their life processes.

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A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientistmost to make her decision?

• size of the cells of the organism

• what the organism eats

• how many types of cells are in the organism

• how fast the organism grows

Tags

NGSS.MS-LS1-1

Identify the producers in this food web.

• grass, weeds and trees

• grasshoppers and bees

• lion, hawk and snake

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Identify one food chain in this food web.

• grass to rabbit to lion

• lion to deer to tree

• tree to bees to bird to snake to hawk

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Identify one possible cause and effect in this food web if the mouse population died out.

• There are no mice, so there would be less grasshoppers causing there to be more grass.

• There are no mice, so there would be more grasshoppers causing there to be less grass.

• There are no mice, so there would be more snakes causing there to be more hawks.

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What is an invasive species?

• An organism that lives in its natural environment and causes harm.

• An organism that goes into an environment that it is not native to and causes harm.

• An organism that lives in its natural environment.

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NGSS.MS-LS2-2

What is a population?

• a group of the same type of organism living in the same area.

• organisms that eat other organisms in their habitat.

• the amount of people living in an area.

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What is an organism?

• something that eats other things

• an animal

• a living thing

Tags

NGSS.MS-LS1-5