F24 - Environmental Science Final Review

Front

What is the energy transfer efficiency in an ecosystem?

Back

Energy transfer efficiency is typically around 10%, meaning only about 10% of the energy from one trophic level is available to the next.

Front

What are producers in an ecosystem?

Back

Producers are organisms, like plants and algae, that can make their own food through photosynthesis, forming the base of the food chain.

Front

What is a topographic map?

Back

A topographic map is a detailed and accurate graphic representation of cultural and natural features on the ground, showing elevation and terrain.

Front

How do you determine elevation from a topographic map?

Back

Elevation can be determined by reading the contour lines on a topographic map, where each line represents a specific elevation level.

Front

What is a positive ion?

Back

A positive ion, or cation, is formed when an atom loses one or more electrons, resulting in a net positive charge.

Front

What is a triple beam balance used for?

Back

A triple beam balance is a device used to measure mass very accurately by balancing the object on one side against known weights on the other.

Front

How do you read a triple beam balance?

Back

To read a triple beam balance, add the values from each beam to find the total mass of the object being measured.

Front

What is the significance of energy pyramids in ecology?

Back

Energy pyramids illustrate the energy flow and loss at each trophic level in an ecosystem, showing that energy decreases as it moves up the pyramid.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil and supporting new plant growth.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in grams or kilograms, while weight is the force exerted by gravity on that mass.