Biology OST Practice

The Origin of Species is...

• A book written and published by Charles Darwin, describing natural selection and descent with modification

• A scientific theory explaining that parts of an organism's body that is used will become more developed, parts that are not used may become smaller and disappear

• a description of how the physical world behaves

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Brian is currently studying biology. He loves looking at the world around him and trying to find out why everything works the way it does in nature. He is always observing and inferring. He asks a ton of questions and tries to find the answers. What scientific attitude is Brian exemplifying?

• honesty

• skepticism

• bias

• curiosity

Which title is the best?

• Plant Growth and Colored Light

• The Effect of Light on Plants

• Colored Lights Make Plants Grow Tall

• The Effect of Colored Lights on Bean Plant Height

Tags

NGSS.MS-LS1-6

Sam wants to determine which type of citrus juice does the best job of keeping apples from turning brown. He places apple slices in four different juices and times how long it take for them to show signs of browning. Choose the correct variables below.

• IV- type of apples . DV- type of citrus juice

• IV- time to brown . DV- type of citrus juice

• IV- type of apples . DV- amount of brown on apple

• IV- type of citrus juice . DV- time to brown

Tags

NGSS.MS-ETS1-3

Which is a valid hypothesis?

• I think that fertilizer is good for plants.

• If a plant gets fertilizer it will be better.

• If a plant grows taller, then it will get fertilizer.

• If a plant is grown with fertilizer, then it will grow taller.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Connor and his lab partner take turns measuring their plants. It seems that the plants seem to grow about 2cm per week. Today, his partner reports that the plants grew 8cm since the last measurement. Connor thinks this seems unreasonable. Connor is....

• predicting

• showing bias

• skeptical

• open-minded

Things that could have affected the outcome of a lab experiment besides the variable are known as....

• experimental error

• qualitative observations

• a hypothesis

• a control group

Tags

NGSS.MS-PS1-2

What is the primary function of the mitochondria in a cell?

• A) Photosynthesis

• B) Protein synthesis

• C) Energy production

• D) DNA replication

Tags

NGSS.MS-LS1-2

Which of the following best describes the process of osmosis?

• A) Movement of water from high to low concentration through a semi-permeable membrane

• B) Movement of solutes from low to high concentration

• C) Active transport of ions across a membrane

• D) Diffusion of gases in the atmosphere

In a scientific experiment, what is the role of a control group?

• A) To provide a standard for comparison

• B) To introduce new variables

• C) To ensure the experiment is biased

• D) To increase the sample size