Download
1 / 13
140 likes | 374 Vues
This resource outlines the flow of energy through food chains, detailing the roles of producers, primary consumers (herbivores), secondary consumers (carnivores and omnivores), and tertiary consumers. It explains how living organisms depend on one another for energy, highlighting the predator-prey relationship, where predators regulate prey populations to maintain ecosystem balance. Key terms related to food chains are defined to aid understanding. This content is designed to enhance comprehension of ecological interdependence in various habitats.
E N D
Created by Mr. Hemmert Food Chains
Science ALCOS • L5.3 Tracing the flow of energy through a food chain • Example: producer, first-level consumer, second-level consumer, and third-level consumer
Food Chains • Every organism needs to obtain energy in order to live. • Plants get energy from the sun, some animals eat plants, and some animals eat other animals. • Living things depend on one another to live.
Food Chains consumer • A food chain is the movement of food energy in a sequence of living things. producer consumer consumer consumer
Food Chain Vocabulary • Consumers that are eaten are called prey. • A consumer that eats prey is a predator.
Prey and Predators • Predators limit the number of prey animals in a habitat. • Ex. Wolves are predators of antelope. They keep the population of antelope from increasing too much, so the antelope don’t eat all of the producers. • Predators often compete for the same prey. This limits the number of predators in a habitat.
Level of Producers • Primary Producers - Organisms that make their own food from sunlight. Primary producers are always the base (bottom) of the every food chain.
Levels of Consumers • First Level Consumers are animals that eat producers (plants). • They are also called herbivores (plant-eaters)
Levels of Consumers • Second Level Consumers eat first level consumers. They are called carnivores (meat – eaters) and omnivores (animals that eat both animals and plants.)
Levels of Consumers • Third level consumers eat second level consumers.
Practice What is the primary producer? _________________________ What is the first-level consumer? _________________________ What is the second - level consumer? ______________________ _ What is the third-level consumer? ________________________
leaf bird Practice Primary Producer: _______________ First-level Consumer: _____________ Second-level Consumer: __________ Third-level Consumer: ____________ Decomposer: ___________________ snail fox bacteria
Resources • Microsoft Online
