Question
1. Examine the food web below. Which statement correctly identifies the trophic level of the snake?
*
20 points
Captionless Image
Producer
Primary consumer
Secondary consumer
Tertiary consumer
2. Of the choices below, a carnivorous predator would likely be a _______within in an ecosystem.
*
20 points
Producer
Primary consumer
Secondary consumer
Decomposer
3. Examine the energy pyramid below. Which choice correctly explains why trophic levels are represented in a pyramid shape?
*
20 points
Captionless Image
Energy is gained at each trophic level, supporting less biomass at the top
Energy is lost at each trophic level, supporting less biomass at the top
Energy is gained at each trophic level, allowing more organisms to be represented on the top level
Energy is completely transferred from one trophic level to the next, with no energy lost as heat
4. How could an increase in a secondary consumer affect producers?
*
20 points
It could cause the population of the producers to increase, because they now have less primary consumers eating them.
It could cause the population of the producers to decrease, because they now have more primary consumers eating them.
It could cause the population of the producers to decrease by half
Secondary consumers have no effect on producers
5. Consider a forest ecosystem. If the producer level has 1,000 Joules of energy, what amount of energy would be found in the primary consumer level?
*
20 points
10 Joules
100 Joules
1,000 Joules
10,000 Joules
*
20 points
Captionless Image
Producer
Primary consumer
Secondary consumer
Tertiary consumer
2. Of the choices below, a carnivorous predator would likely be a _______within in an ecosystem.
*
20 points
Producer
Primary consumer
Secondary consumer
Decomposer
3. Examine the energy pyramid below. Which choice correctly explains why trophic levels are represented in a pyramid shape?
*
20 points
Captionless Image
Energy is gained at each trophic level, supporting less biomass at the top
Energy is lost at each trophic level, supporting less biomass at the top
Energy is gained at each trophic level, allowing more organisms to be represented on the top level
Energy is completely transferred from one trophic level to the next, with no energy lost as heat
4. How could an increase in a secondary consumer affect producers?
*
20 points
It could cause the population of the producers to increase, because they now have less primary consumers eating them.
It could cause the population of the producers to decrease, because they now have more primary consumers eating them.
It could cause the population of the producers to decrease by half
Secondary consumers have no effect on producers
5. Consider a forest ecosystem. If the producer level has 1,000 Joules of energy, what amount of energy would be found in the primary consumer level?
*
20 points
10 Joules
100 Joules
1,000 Joules
10,000 Joules
Answers
GPT-4o mini
1. To determine the trophic level of the snake, we need to understand where it fits in the food web. Generally, snakes are secondary or tertiary consumers, as they often eat primary consumers (like rodents) and can sometimes eat other predators. Without seeing the specific food web, the most likely correct answer is **Secondary consumer**.
2. A carnivorous predator would likely be a **Secondary consumer** within an ecosystem. They consume primary consumers (herbivores) and sometimes other secondary consumers.
3. The choice that correctly explains why trophic levels are represented in a pyramid shape is **Energy is lost at each trophic level, supporting less biomass at the top**. This explains the decrease in energy availability as you move up the pyramid.
4. An increase in a secondary consumer could affect producers by **It could cause the population of the producers to increase, because they now have less primary consumers eating them.** This would occur if the secondary consumers were preying on primary consumers, thus reducing their numbers and allowing more producers to survive.
5. In a forest ecosystem, if the producer level has 1,000 Joules of energy, the primary consumer level would typically have about 10% of that energy, based on the 10% energy transfer rule. Therefore, the amount of energy found in the primary consumer level would be **100 Joules**.
2. A carnivorous predator would likely be a **Secondary consumer** within an ecosystem. They consume primary consumers (herbivores) and sometimes other secondary consumers.
3. The choice that correctly explains why trophic levels are represented in a pyramid shape is **Energy is lost at each trophic level, supporting less biomass at the top**. This explains the decrease in energy availability as you move up the pyramid.
4. An increase in a secondary consumer could affect producers by **It could cause the population of the producers to increase, because they now have less primary consumers eating them.** This would occur if the secondary consumers were preying on primary consumers, thus reducing their numbers and allowing more producers to survive.
5. In a forest ecosystem, if the producer level has 1,000 Joules of energy, the primary consumer level would typically have about 10% of that energy, based on the 10% energy transfer rule. Therefore, the amount of energy found in the primary consumer level would be **100 Joules**.