AP BIOLOGY

ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The purpose of this selection is mainly to-
A
explain the role of living things in the food chain/web
B
describe how living things in the food chain interact with each other
C
offer why the sun is needed in our everyday lives
D
explain how consumers need producers
Explanation: 

Detailed explanation-1: -A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. After that when carnivores eat the herbivores, energy is transferred from one to the other.

Detailed explanation-2: -A food chain refers to the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism. The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain.

Detailed explanation-3: -PRODUCERS: At the bottom of the food chain, plants are natural producers and provide food and nutrients to consumers. HERBIVORES: Herbivores nourish on plants and insects. PREDATORS: Predators prey on herbivores or other predators. DECOMPOSERS: When an animal dies, scavengers and decomposers break them down.

Detailed explanation-4: -A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain.

There is 1 question to complete.