Biology Benchmark 1 - The Nature of Life

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?

• soil, sunlight, music

• Water, apple juice, milk
• Plant growth
• The factor changed by the scientist

Tags

NGSS.MS-LS1-5

If your teacher asked you to make qualitative observations about the class’s pet hamster, which group of words might be used?

• A mass of 3 kg and an age of 16 months

• 11 cm long

• Long hair, white and brown colored, soft

• Body temperature of 101°F

Researchers are developing a new fertilizer designed to improve the growth of plants in hot, dry climates. The fertilizer was applied to one hundred desert plants in a greenhouse, while one hundred plants did not get the fertilizer. The average daytime temperature in the greenhouse was 90°F and the humidity levels were low. Which is best for the researchers to do next?

• Compare the growth of plants that received fertilizer to similar plants that didn't receive the fertilizer

• Begin selling the fertilizer to gardeners living in hot, dry climates

• Change the conditions in the greenhouse and retest the fertilizer

• Test the fertilizer on plants that are adapted to cooler climates

Tags

NGSS.HS-ETS1-1

The controlled variables are...

• what the scientist changes at the beginning of each trial

• what the scientist measures at the end of each trial

• all the things that stay the same in every trial of the experiment

• possible answers to a question

Which of the following is a term used to describe all the chemical reactions that take place in a living thing?

• respiration
• mutations
• homeostasis
• metabolism

Tags

NGSS.MS-LS1-7

Which characteristic is shown in the image?

• Organisms reproduce

• Organisms react to stimuli

• Organisms can adapt

• Organisms use and obtain energy

• Organisms are made up of cells

Tags

NGSS.MS-LS1-8

Regulating the body in order to keep a constant internal state is called ________.

For example, humans sweat when it's hot outside.

• stimuli

• irritability

• homeostasis

• survive

Tags

NGSS.HS-LS1-3

__________ is a type of reproduction that requires only one parent. The resulting offspring are identical to the parent.

• Asexual reproduction

• Sexual Reproduction

• Nonsexual Reproduction

• Metabolism

Tags

NGSS.MS-LS3-2