Science Review 7

Which vertebrate groups are warm blooded (have a constant body temperature)

• only mammals and birds
• mammals, birds and reptiles
• only mammals
• all vertebrates are warm blooded

Which group of vertebrates is found only in water?

• Fish
• Crustaceans
• Amphibians
• Fish and amphibians

Which vertebrate groups lay eggs

• Birds and fish only
• Birds and amphibians only
• Birds only
• Birds, reptiles, amphibians and fish.

Which of the following is the MOST important reason that scientists classify living things?

• It allows scientists to count groups of organisms quickly.
• It makes it easier for scientists to capture organisms in the wild.
• It helps scientists see how organisms are alike or different.
• It shows scientists why organisms act the way they do.

In what ways does the structure of the cell membrane contribute to the overall function of the cell?

• A. It provides a rigid support that provides structure for the entire organism.

• B. It contains small openings that can store water the cell needs to survive.

• C. It carries signals from one cell to the next, allowing cells to work together.

• D It allows for the passage of certain substances into and out of the cell.

How are organelles beneficial to the cell?

• A. The parts require nutrients in order to work properly.

• B. The various organelles increase the energy used by the cell.

• C. Genes control the functions of the cells.

• D. Each part performs a unique and necessary function

Students are comparing the parts of a cell to the parts of a city. Which of the following would provide the best comparison to the nucleus of a cell?

• A. Power Plant – provides energy needed by all parts of the city

• B. City Hall – directs necessary activities throughout the city

• C. Waste Management – collects and removes waste

• D. Border Patrol – regulates what enters and leaves the city

How is a burning candle both a physical and chemical change?

• I know a burning candle is both because I know.When it melts it just stays there.The wax does not harden.It stays like a liquid.That is how I know a burning candle is both a physical and chemical change.

• I know a burning candle is both because of the wax.When the candle burns the wax melts.Then after some time it hardens.After that it might look like the same candle at first.That is how the candle is both a physical and chemical change.

What is the melting ice?A chemical or physical change?

• A Chemical change

• A physical change

• Both

• None of the above

What is the burning wood?A chemical or a physical change?

• A chemical change

• A physical change

• Both

• None of the above