Q1 IA Review ET Part 1

The Sun is the source of all energy within an ecosystem. Plants depend on light from the sun in order to perform the process of photosynthesis. Sunlight is an example of what type of factor?

• BIOTIC

• ABIOTIC

All living things or organisms in an ecosystem are

• None

• biotic factors

• abiotic factors

Is temperature a biotic or abiotic factor?

• biotic

• abiotic

The ocean is part of which of Earth's systems?

• atmosphere

• geosphere

• biosphere

• hydrosphere

Scientists know that Earth's continents have changed position throughout history. This means that the shape of the continents' shores have changed as well. This is an example of which two Earth systems interacting?

• biosphere and geosphere

• biosphere and atmosphere

• geosphere and atmosphere

• geosphere and hydrosphere

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%
• 10%
• 100%
• 1000%

Which animal is the apex predator?

• hawk
• lizard
• snake
• grass

Why is a shark a carnivore.

• because it eats seaweed
• because it eats dead animals
• because it eats sand 
• because it eats other animals

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

Which is a synonym for an autotroph?

• heterotroph

• consumer

• producer