Test - LEAP 2025 Biology Pre Test

LEAP 2025 Biology Pre Test Sample

1pt Standard: HS-LS-2-1 DOK: 1

Use the diagram and your scientific knowledge to complete the question. Select the correct answer to complete the sentences

The Energy pyramid below shows how energy is transferred from one trophic level to another.

Part A

The trophic level containing the least amount of biomass is

1pt Standard: HS-LS-2-4 DOK: 1

Part B

If the biomass of the producers decreased, the organisms in the other trophic levels would

1 pt Standard: HS-LS-1-5, HS-LS-1-6, HS-LS-1-7 DOK: 1

Compare Photosynthesis and Cellular Respiration. Drag the correct answer into each box to complete the table.

Reset
A.	Drop answer here
B.	Drop answer here
C.	Drop answer here
D.	Drop answer here
E.	Drop answer here

Energy storage

Mitochondria

CO2 and H2O

CO2, H2O, and Light

6O2 + C6H12O6 $\to$ 6CO2 $\to$ 6H2O + energy

1 pt Standard: HS-LS-1-7 DOK: 1

29.

A freshwater plant has an internal concentration of 1.2 g/ml. It is placed in a salt marsh that has a concentration of 12 g/ml.

Select the correct answer. Which best predicts the direction water will move across the plant cell wall and the effect of that movement on the plant?

Water would move out of the plant’s cells, causing the plant to wilt.

Water would move into the plant’s cells, causing the plant to wilt.

Water would move out of the plant’s cells, causing the plant to swell.

Water would move into the plant’s cells, causing the plant to swell.

1 pt Standard: HS-LS-1-3 DOK: 1

31.

A biology student made the diagram below. Select the correct answer for the box, which best describes the group of people.

ecosystems

organ system

cells

organisms

1 pt Standard: HS-LS-4-1, HS-LS-4-4 DOK: 1

41.

To learn how species are related, scientists can compare structures found in the species to find similarities. The skulls shown are from four different animals.

Select the correct answer. Which two animals are the most closely related?

Reptiles A & B

Reptiles B & C

Reptiles A & D

Reptiles C & D

Student Name: