A
What are organisms that can produce their own food called?
A.Photosynthesis
B. Producers (like plants)
Producers (like plants)
Which organism is considered a primary producer in an ecosystem?
A. SUN!!!
B. A plant
A plant
Which organism is considered a "producer" in a food chain, meaning it creates its own food using sunlight?
A. A tree
B. SUN!!!
A tree!!!
What is the primary source of energy for most living systems?
A.Consumers
B. SUN
SUN!!!
How does energy enter an ecosystem?
A. A plant
B. Through sunlight captured by plants during photosynthesis
Through sunlight captured by plants during photosynthesis
Explain the "10% rule" in the context of energy flow through a food chain.
A. A herbivore that eats plants directly.
B. Only about 10% of the energy from one trophic level (like a plant) is transferred to the next trophic level (like an herbivore) when it eats it; the rest is lost as heat
Only about 10% of the energy from one trophic level (like a plant) is transferred to the next trophic level (like an herbivore) when it eats it; the rest is lost as heat
What are organisms that need to consume other organisms to obtain energy called?
A.Consumers
B.Producers (like plants)
Consumers
Why is there less energy available at each higher trophic level in a food pyramid?
A. Because energy is lost as heat at each transfer between trophic levels
B.Sun -> Producer -> Primary Consumer -> Secondary Consumer.
Because energy is lost as heat at each transfer between trophic levels
Give an example of a food chain with three trophic levels, including the producer, primary consumer, and secondary consumer.
A. Consumers.
B. Grass (producer) -> Rabbit (primary consumer) -> Fox (secondary consumer)
Grass (producer) -> Rabbit (primary consumer) -> Fox (secondary consumer)
How does energy move through a food chain?
A. Energy flows from producers to primary consumers, then to secondary consumers, and so on, with each transfer losing some energy as heat
B.Plants use sunlight, carbon dioxide, and water to produce glucose (sugar) and oxygen
Energy flows from producers to primary consumers, then to secondary consumers, and so on, with each transfer losing some energy as heat
What is the correct sequence of energy flow in a food chain?
A. Sun -> Producer -> Primary Consumer -> Secondary Consumer.
B. Decomposers break down dead organisms, recycling nutrients back into the environment for producers to use.
Sun -> Producer -> Primary Consumer -> Secondary Consumer.
In a food chain, which organism would be considered a primary consumer?
A. A herbivore that eats plants directly
B. decomposers break down dead organisms, returning nutrients back into the environment for producers to use.
A herbivore that eats plants directly
How does cellular respiration convert energy from food into ATP?
A. Plants use sunlight, carbon dioxide, and water to produce glucose (sugar) and oxygen
B. Through a series of chemical reactions involving glucose and oxygen, cells break down food molecules to generate ATP.
Through a series of chemical reactions involving glucose and oxygen, cells break down food molecules to generate ATP.
What role do decomposers play in the energy flow through an ecosystem?
A. Decomposers break down dead organisms, recycling nutrients back into the environment for producers to use
B. Sun -> Producer -> Primary Consumer -> Secondary Consumer
Decomposers break down dead organisms, recycling nutrients back into the environment for producers to use
What would happen to the population of rabbits if the grass in their habitat was significantly reduced?
A. The pyramid shape shows that the amount of available energy decreases as you move up the food chain, with the largest amount at the producer level.
B. The rabbit population would likely decrease because they have less food available.
The rabbit population would likely decrease because they have less food available.