If any organism wants to survive, they must eat. Why? To get energy. Food chains and webs describe the transfer of energy within an ecosystem, from one organism to another. In other words, they show who eats whom. This human Barbie girl told the world that she had stopped eating and drinking and was surviving on "cosmic-nutrients and air". Her plan didn't last very long, people saw her buying food at the grocery store and visiting a McDonalds. Of course all of us need nutrients and energy to survive! Food chains and food webs represent the feeding relationships in ecosystems. They show who eats whom. Therefore, they model the flow of energy and materials through ecosystems. A food chain represents a simple, straight pathway through which energy and materials are transferred from one species to another in an ecosystem. In general, food chains show how energy and materials flow from producers to consumers. Energy and materials also flow from producers and consumers to decomposers, but this step usually is not included in food chains. Food chains tend to be overly simple models of what really happens in nature. Most organisms eat many different species and are, in turn, consumed by many other species. A food web represents these more complex interactions. A food web is a diagram of feeding relationships that includes multiple intersecting food chains. We will have another discussion about food webs...tomorrow.
13 Comments
MaryGrace/Fred
5/1/2018 01:44:55 pm
YES!! I'm first!!! Great job on the blog Mrs. Taylor! I seen that Barbie lookin girl everywhere!!!
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Errol
5/1/2018 03:36:36 pm
i have seen that barbie girl on some of the quiz websites.
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Sadie
5/1/2018 05:09:24 pm
I think the first picture looks a little scary!!! Good job on the blog!!!
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caleb
5/1/2018 08:57:55 pm
good job Mrs.Talor, I liked the blog.
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Errol
5/2/2018 07:41:11 am
Why do food webs have to be so complicated?
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mia
5/2/2018 08:20:23 am
that was so cool!!!!!!!
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harmony
5/2/2018 08:20:35 am
that is crazy that some one would stop eating and drinking just to look like a barbie doll
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addi and tyani
5/2/2018 08:21:20 am
we wish we could see more!
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kenned
5/2/2018 08:22:10 am
i liked the nuns
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kyan
5/2/2018 08:23:18 am
i liked the barbie
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adell
5/2/2018 08:24:31 am
the food chain was awesome
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boone and hunter
5/2/2018 08:27:07 am
i like the barbie girl
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Addy S and MaKenna
5/2/2018 09:50:27 am
Good job on the blog I love th Barbie pic
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Mrs. TaylorI love science! Everything about the world is interesting and never boring. I love to study plants, animals, insects, and people. My favorite subjects are my students who are the most unique organisms on the planet! Categories |