Characteristics of Organisms

In which way do unicellular organisms differ from multicellular organisms?

• A. Unicellular organisms do not reproduce and multicellular organisms do reproduce.

• B. Unicellular organisms do not respond to their environment and multicellular organisms do respond to their environment.

• C. Unicellular organisms are made up of one cell and multicellular organisms are made up of more than one cell.

• D. Unicellular organisms do not use energy and multicellular organisms do use energy.

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NGSS.MS-LS1-1

Which word below could be used to describe this organism?

• Autotrophic

• Prokaryotic

• Immotile

• Multicellular

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NGSS.MS-LS1-1

A student has a pet worm named Pete. After 8 weeks of living with Pete, the student notices that Pete has doubled in size. What characteristic of living things did the student observe?

• Living things grow and develop

• Living things respond to stimuli.

• Living things reproduce.

• Living things use energy.

Animals have ________ cells, which can be distinguished by the presence of _______. Which terms best complete the sentence?

• eukaryotic; small cells
• eukaryotic; a nucleus
• prokaryotic; a nucleus

• prokaryotic; small cells

Which information would help the scientist identify if it's multicellular or unicellular?

• What the organism eats

• How it grows

• How many cells it is made of

• How the organism reproduces

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NGSS.MS-LS1-1

Which terms best describe animals?

• Heterotrophs; consumers

• Autotrophs; producers

• Autotrophs; consumers

• Heterotrophs; producers

Biologists are building models of several multicellular organisms. Which of these characteristics would ALL of the models have in common?

• They would be made of many cells with cell walls.

• They would have parts to help them move around their environment.

• They would have chloroplasts to trap sunlight and create their own food.

• They would have different types of specialized cells that do different jobs.

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Why are plants considered autotrophic organisms?

• A. They contain many cells.

• B. Their cells contain nuclei.

• C. They can produce their own food.

• D. They cannot freely move on their own.

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What makes protists eukaryotic?

• All protists can make their own food.

• All protists contain a cell nucleus.

• Every protist is able to move itself around.

• Every protist is classified as unicellular.

Which answer correctly identifies the autotrophs and the heterotrophs in the image?

• A. Autotrophs: sloths and vines; Heterotrophs: trees and parrots

• B. Autotrophs: trees and vines; Heterotrophs: sloths and parrots

• C. Autotrophs: vines and parrots; Heterotrophs: trees and sloths

• D. Autotrophs: parrots and sloths; Heterotrophs: vines and trees

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