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The structure/function of the cockraoch's leg is that the leg doesn't have pain receptors so it is easy to grow back

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Next, we put the cockroach on the experiment box and rubbed the recorder along the hairs on its leg to see the response

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we then took tweezers and removed one of the cockroaches back legs

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We numbed the cockroach by letting it sit in ice water until it lost feeling in its legs. It was in the ice bath for about 3-4 minutes

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experimentation with a model organism-cockraoch

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experimentation with a model organism-cockraoch

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homeostasis is the ability or tendency to maintain internal stability in an organism to compensate for environmental changes. An example of homeostasis is the human body keeping an average temperature of 98.6 degrees.The nervous system helps keep homeostasis in breathing patterns. Because breathing is involuntary, the nervous system ensures that the body is getting much needed oxygen through breathing the appropriate amount of oxygen. When toxins get into your blood, they disrupt your body's homeostasis.

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Atoms:  basic unit of a chemical element

Molecules: a group of atoms bonded together

Macromolecules: a molecule containing a very large number of atoms, such as protein,  nucleic acid, or synthetic polymer

Organelles: any of a number of organized or specialized structures within a living cell

Cells: the smallest structural and functioning unit of an organism

Tissues: groups of cells working together to perform specific functions for the body

Organs: part of organism that has a specific vital function

organ system: group of organs that work together to perform one or more functions

organism: any animal, plant, or single-celled life form