Unit 3 CFA Most Missed

#1:

Multiple Choice

According to the food web, in which trophic level of the energy pyramid does the anchovy belong?

• 1: Producer

• 2: Primary Consumer

• 3: Secondary Consumer

• 4: Tertiary Consumer

​#3:

Multiple Select

The student learns that carbon dioxide is stored under Earth's surface as part of the geosphere. Which parts of the carbon cycle show carbon dioxide from the geosphere being cycled to another sphere of Earth? Select two answers.

• The arrow pointing from the plant to the soil.

• The arrow pointing from the coal to the factory.

• The arrow pointing from the plant to the animal.

• The arrow pointing from the volcano to the atmosphere.

​#13:

Multiple Choice

Which statement best describes the chemical reaction shown in figure 1?

• Energy for movement is released by the breakdown of carbon atoms.

• Food is produced using chemical compounds and energy from the sun.

• Glucose is broken down into smaller molecules to be used by the body.

• Compounds are broken down to produce oxygen for the organism to breathe.

​#15:

Multiple Select

The equation shows a reaction that occurs during the decomposition of a grasshopper's body:

CH₂O + O₂ $$\rightarrow$$ H₂O + CO₂ + energy

Which statements about both the decay and cellular respiration processes are true? Select three correct answers.

• Molecules are broken down to produce energy

• No atoms are lost during the chemical reaction

• Atoms are rearranged to form different compounds

• New atoms are produced through chemical change

• New atoms must be created for each new substance

​#18:

Multiple Choice

Which of the following best describes a similarity between photosynthesis and the changes in energy represented by the diagram.

• During photosynthesis, a plant's leaves change solar energy into chemical energy, and then the chemical energy is used for the plant's life function

• During photosynthesis, a plant's leaves change chemical energy into solar energy, and then the solar energy is used for the plant's life function

• During photosynthesis, a plant's roots absorb water and then transform the water into chemical energy that is used for the plant's life functions

• During photosynthesis, a plant's roots absorb and store water until the plant needs the energy stored in the water for the plant's life functions

​#23:

Multiple Choice

Which species most likely performs photosynthesis?

• A

• B

• Both A and B

• Neither A nor B

#24

Multiple Choice

During what time period was the light turned on?

• 0 minutes to 23 minutes

• 0 minutes to 60 minutes

• 23 minutes to 60 minutes

• 12 minutes to 40 minutes