Ch. 1 Review Biology

A testable explanation of a situation is called a(n) _________

• experiment
• hypothesis
• inference
• observation

Which activity is an example of the human body striving to maintain homeostasis?

• creating thoughts to solve a difficult problem
• digesting foods to reduce their particle size
• producing sweat to reduce body temperature
• sprinting across a street to avoid oncoming traffic

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Which is an example of a stimulus and the accompanying response of an organism?

• A hawk grabs a branch to gain a perch.
• A rat scurries past, and a python strikes at it.
• A wildebeest crosses a river during migration.
• An earthworm burrows into new, rich soil.

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Living things do all of the following except

• make adjustments to nonliving factors around them.
• maintain a steady internal environment.
• respond to other organisms.
• pass an identical genetic code to their offspring for many generations.

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Because it is often difficult to gather numerical data, _________ or descriptive information can be collected as well.

• quantitative
• qualitative
• scientific
• ethical

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Students in a biology class ran an experiment on a type of flowering plant. Their goal was to find the optimal time in the plant's life for flowering. What time period will provide the most flowering plants? Use the table provided to determine your answer.

• 5-6 days
• 6-7 days
• 7-8 days
• 8-9 days

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Which of the following results from quantitative analysis?

• The babies are cold.
• There are 8 offspring.
• There isn't enough food.
• These are the first offspring these rabbits have had.

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What is the basis of the metric measurement system?

• Its measures are based on divisions that are powers of ten.
• It is based on American measurement standards.
• It is based on feet, inches, pounds, and gallons.
• It is based on the wavelength of krypton-86 radiation.

Which of the following is an observation?

• You record the air temperature every day for a week.
• You propose that a cold front is approaching.
• You hypothesize that the temperature will increase tomorrow.
• You conclude that summer is hot.

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Which is an inference?

• You measure a plant's height every day for a week.
• You give a plant the same amount of water every day.
• Every day for a week, you collect data on a plant' movement.
• After watching a plant for a week, you determine it needs more sunlight.

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