Symbiosis (11/9-11/14)

http://u.osu.edu/sabreelab/files/2013/03/symb_web2.png

Summary:

Symbiosis is the different ways that organisms interact with each other. There are three different types of symbiosis. Parasitism, commensalism, and mutualism. These three types of symbiosis explain how organisms can act. But as you read remember, all living things are organisms. Symbiosis also happens with humans and dogs, read on and figure out how.

 Have you ever had bedbugs, or even ticks? Well if you had, then that was parasitism. Parasitism is when one of the organism benefits, and the other gets hurt. Here is another example: The girl keeps scratching her head all day. The lice is benefiting because it is getting blood to live. The girl is getting hurt, and definitely not benefiting. The way these two organisms were interacting together makes parasitism. This is a good-bad relationship.

Commensalism is when one organism benefits, and the other is not harmed. Here is an example: The bird makes a nest on a tree. The bird benefits because it has somewhere to put its house, but the tree is not harmed. As you can see, commensalism is much better than parasitism, but read about mutualism.

 Have you ever seen bees going from one flower to another gathering nectar? They use the nectar to make food, so they can eat. But when bees land on a flower, without realizing it they pick up some pollen and drop it off to the next flower. This helps with pollinating the plant. Both organisms are benefiting from this. The bees get the food and the flower gets to grow seeds or fruit. Mutualism is when both organisms benefit, and there is no harm. 

 I hope you have learned the different types of symbiosis from my examples. Symbiosis is happening everywhere, even though you might not notice it. Have you figured out what type of symbiosis dogs and humans make together yet? The dog benefits by having someone to care for it, and well the human  benefits by having a companion and having someone to cuddle with. Which one of the three types of symbiosis does this make?
 
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