COLT
Ecosystems & Ecological Levels
Experimental Design
CER
MCQ
100

This basic structural and functional unit of all known living organisms is the first level of organization that is considered "alive"

What is a cell 

100

This level of organization includes only a group of individuals of the same species living in a specific area

What is a population

100

To identify this variable in an experiment, students should ask the question: "What did I change?"

What is the independent variable?

100

This part of a CER statement is a concise, 1-sentence statement that directly answers the investigative question

What is a claim?

100

A biologist is studying all of the endangered short-eared owls at Springbrook Prairie because there are fewer of them then there were in 2010. This scenario best represents which ecological level of organization?

  1. Population

  2. Organism

  3. Community

  4. Ecosystem

  5. Biosphere

Population 

200

This life characteristic is demonstrated when Daphnia increase their heart rate in warmer temperatures or when an unknown space organism moves toward a light source

What is responds to stimuli 

200

This level of ecological organization consists of multiple different populations of organisms living together and interacting with one another in a specific area

What is a community?

200

 To identify this variable in an experiment, students should ask the question: "What will I measure?"

 What is the dependent variable?

200

When setting up a microscope to view a specimen, you should always start with this objective lens (the smallest one)

What is scanning power or 10x or red lens 
200

Which of the following is an abiotic factor in an ecosystem?

  1. Bacteria decomposing leafs

  2. Temperature variations

  3. Birds eating insects

  4. Plants competing for sunlight

  5. Mushrooms growing in decomposed logs

2. temperature variations

300

When an organism maintains a steady heart beat while siting, it is exhibiting this characteristic

What is maintaining homeostasis?

300

An ecosystem is defined by the interaction between these two major categories of environmental factors

What are biotic and abiotic factors?

300

To identify this experimental group, students should ask: "What will I compare things to?"

What is the control group?

300

If you are graphing data that tracks two sets of variables over a continuous period of time, this is the type of graph you should construct

What is a line graph

300

Your group is creating an initial model of the Naperville Riverwalk ecosystem. In a model representing how algae growth in the river is affected by sunlight, which of the following best describes the interaction?

  1. The image of algae and the image of the sun.

  2. The entire riverwalk ecosystem model.

  3. The image of the algae.

  4. An arrow between the sun and algae that says sunlight provides energy for algae to grow

  5. The explanation of how fish combine the algae they eat with the oxygen that passes through their gills to obtain energy.

4. an arrow between the sun and algae that says sunlight provides energy for algae to grow 

400

These are the 8 characteristics of life listed in the class progress tracker

What are DNA, Reproduction, Cells, Homeostasis, Evolution/Adaptation, Energy (Uses Energy), Responds to Stimuli, and Growth/Development?

400

Water, temperature, and river rocks are classified as this type of environmental factor

What are abiotic factors?

400

To identify these experimental design elements, students should ask: "What did I keep the same?"

What are constants?

400

This component of a CER explains why the data supports the claim, drawing logical links and incorporating scientific principles without simply restating the evidence

What is reasoning

400

in a experiment where plants were given different amount of water to track their growth. What is the control group? 

a. plants with no water 

b. plants with 10ml of water 

c. all the plants being the same species 

d. plants receiving the most sunlight 

a. plants with no water

500

You find an unknown orange substance, place it in a school fish tank, and observe it doubling in size while consuming vegetables and floating in the same spot of the tank.Identify all characteristics of life being shown.

1) Using energy 2) Growth 
500

This level of organization represents the sum of all ecosystems on Earth where life exists

What is the biosphere?

500

The independent and dependent variable in the following experiment: A student investigated whether ants dig more tunnels in the light or in the dark.  Ten ant colonies were set up in commercial ant farms with the same number and type of ants per farm. They were each given 100 grams of food and were kept at 25 degrees Celsius.  Five of the ant colonies were exposed to normal room light and 5 were covered with black construction paper so they did not receive light.  Every other day for 3 weeks the length of tunnels was measured in millimeters using string and a ruler.  

Independent: amount of light  Dependent: length of tunnels

500

The evidence from a passage, "It shrank away from the contact and stopped producing the sticky substance.", would be an example of which characteristic of life?

a. cells 

b. reproduction  

c. uses energy 

d. responds to stimuli 

e. growth & development

d. respons to stimuli 

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