Question
 The minimal 200-250 words for both parts together . 
 
Part 1:
  • Provide an example of a food chain in the area where you live.
  • Humans are parts of food chains and food webs, too. Where on a food web would you typically find humans (near the bottom with the producers, at the top with carnivores, or somewhere in between)?
  • What are some advantages of being part of a food web rather than a food chain?
Part 2:
 
  • In the Lake Michigan food web, is it possible to identify the most important producer? Why or why not?
  • What would happen if there was a change in the population size for any one of the producers (either an increase or a decrease)? How could these changes impact other producers and organisms on other trophic levels?
  • Provide at least two types of impacts that humans could have on this food web.
  • Read the description of the sea lamprey on page 2 of the food web. This species is described as non-native.
    • Propose a mechanism for how this fish was introduced to Lake Michigan.
    • What challenges could occur within a food web when a new predator like this is introduced into an ecosystem?
    • What natural population controls are missing for this species within this food web?
    • Do you think steps should be taken to eradicate this species from the food web? Explain why or why not? If so, what steps can be implemented?
Grade: University | Subject: General Questions
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Tutorial

Part-I

Food Chain And Food Web

The food chain was nothing but it shows how an organism gets its foods. An example of a food chain in the area where we live was provided here. The dead plants were the food for water louse, the water louse were the food for dragon fly larva. The humans were considered as the omnivores because they eat both plants and animals. The advantages of food web rather than food chain are given below. The food web will be more accurate than the food chain. Normally, the animals will eat different things, and were eaten by the different things, the food web will show us all or most of its prey and predators but the food chain can show one predator and a prey.

Part-II

Food Web For Lake Michigan

No, it was not possible to identify the most important producer in the Lake Michigan food web because the proper details about the producers were not mentioned here. If there was increase in the population size and the people had started to eat the plants more then the growth of the plants will be low, the other animals cannot get the food to eat and every living organisms cannot get oxygen to breath. The two types of impacts that humans could have on this food web were water pollution and the destroying of forest. The species which was described as non-native in page 2 was the fish known as sea lamprey. The mechanism of this fish was it eats both the plants and the fishes. There will be no fishes and no plants will remain when this when a new predator like this was introduced into an ecosystem. The population of this species should be controlled. Yes, steps should be taken for eradicating this species from the food web because it may destroy all the living organisms and it will also die without enough food. The step to be taken was reproductive level of this species can be controlled.

References

Julia Vogel (2010), What Are Food Chains And Food Webs, Library Of Congress And Cataloguing Publications Of Data, ISBN=1602707960

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