7th grade life science S1 Final review

A researcher wants to document the number of wolves migrating through Yellowstone park at a specific time of year. What are some limitations that the researcher might face?

• They might count some wolves more than once.

• They might not be able to document the entire area, so they might miss some wolves.

• There might not be enough food for the wolves.

• The wolves might have variations in size or color.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is a hypothesis?

• An experiment designed to answer the research question.

• A conclusion based on gathered evidence.

• An if..., then... statement that predicts the answer to the research question.

• A research question based on observations.

What is a responding variable?

• The thing a scientist measures during an experiment.

• The thing a scientist changes during an experiment.

• Something the scientist keeps the same during an experiment.

• An unexpected change that occurs during an experiment.

Which of the following are true about scientific models? (more than one is correct)

• They should be based on data in order to help make real predictions.

• They are often safer than working with a natural phenomena.

• They help reduce the number of variables in an environment.

• They should be identical to the environment they are modeling.

Tags

NGSS.MS-ETS1-4

Which terms describe data that is collected by counting individuals?

• Continuous

• Discrete

• Qualitative

• Quantitative

Where would you be most likely to find specialized tissues?

• In an egg cell.

• In a bacterium.

• In a puppy.

• In an amoeba.

What is true about cells that replicate by mitosis?

• The daughter cells have identical DNA to the parent cell.

• The daughter cells are genetically unique from the parent cell.

• The daughter cells have different combinations of genes from the two parents.

• 4 daughter cells will be produced.

Tags

NGSS.MS-LS3-2

How might an organism adapt to changing colors in its environment?

• An organism could find new food sources in its environment.

• An organism's color could change to match the new colors in its environment.

• An organism could find a new habitat from its original environment.

• The organism would not change under this circumstance.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-5

Which type of macromolecule is used for quick energy?

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

What happens during photosynthesis?

• Plants use carbon dioxide and water to make sugars and oxygen.

• Plants use sugars and oxygen to make energy and carbon dioxide.

• Plants use oxygen and carbon dioxide to make sugars and water.

• Plants use water and sugars to make energy and oxygen.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3