Why Organisms Exist Alone Essay

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Ecology: No organism can exist alone. This is why ecosystems are so important, all organisms that live in an ecosystem depend on each other, no matter how big or how small. Interactions within this ecosystem become critical for their survival. There are many different kinds of interactions between organisms in an ecosystem and it is not unusual for any particular organism to play multiple roles in “the food chain”. Humans can be consumers and predators. We can hunt, kill, and eat other animals such as fish or deer, or can eat chicken from a grocery store or restaurant. We also have mutualistic relationships with organisms, like house pets. Competition occurs between humans for resources, even mates. Interactions between organisms, are the nature of life and have a large impact on the functioning and health of ecosystem.

The Cell: The smallest unit of life are known as cells. We interact with cells in everything we see and do on a daily basis. The variations of cells differ, for example there are plant and animal cells. The next larger scale cell is tissue, for example a heart tissue in a human or leaf tissue of a plant. Organs makes up the next
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This is why ecosystems are so important, all organisms that live in an ecosystem depend on each other, no matter how big or how small. Interactions within this ecosystem become critical for their survival. There are many different kinds of interactions between organisms in an ecosystem and it is not unusual for any particular organism to play multiple roles in “the food chain”. Humans can be consumers and predators. We can hunt, kill, and eat other animals such as fish or deer, or can eat chicken from a grocery store or restaurant. We also have mutualistic relationships with organisms, like house pets. Competition occurs between humans for resources, even mates. Interactions between organisms, are the nature of life and have a large impact on the functioning and health of

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