AP BIOLOGY

ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does Image 1 develop an understanding of trophic levels?
A
It shows a detritivore consuming animal remains.
B
It shows a consumer eating a producer.
C
It shows a producer making its own food.
D
It shows a carnivore eating a consumer.
Explanation: 

Detailed explanation-1: -Carnivores are the third trophic level. Omnivores, creatures that consume a wide variety of organisms from plants to animals to fungi, are also the third trophic level. Autotrophs are called producers, because they produce their own food. Herbivores, carnivores, and omnivores are consumers.

Detailed explanation-2: -The trophic levels are the positions of organisms on a food chain. They represents a step wise transfer of energy through food, in an ecosystem. The lowest level of a trophic level is occupied by producers. Producers are consumed by primary consumers i.e herbivores and they occupy the second trophic level.

Detailed explanation-3: -Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans. The method to determine the trophic level of a consumer is to add one level to the mean trophic level of its prey.

Detailed explanation-4: -Significance. Monitoring the trophic levels is essential so as to gain an understanding of the interrelationships between organisms as well as the ecological processes that occur within an ecosystem.

There is 1 question to complete.