Melinda passes out during the frog dissection due to a combination of fear, anxiety, and the overwhelming sight of the dissection itself. Her traumatic experiences and emotional state contribute to her inability to cope with the situation, leading to her fainting. This moment highlights her struggles with mental health and the impact of her past on her present experiences.
It is not necessary, but this can help hold the frog in place more efficiently.
I wouldn't advise using a live frog for dissection as that is cruel. Most schools and universities use fogs that have been purchased and are already dead, stored in a preservation solution.
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The frog dissection is described on pages 148-151 in the book "Speak" by Laurie Halse Anderson.
The most common frog dissection method is to slice a capital "I" shape on the ventral side of the frog. Peel open and pin back the skin, then repeat this for the muscle layer. Remove fat bodies and observe.
This is essentially targeted euthanasia. While the frog is anesthetized, splitting the connection between the brain and spine kills the frog without damaging most of the body.
i don't know u figure it out and stop cheating on your frog dissection worksheet!:[
Dissecting the nerves last in a frog allows you to examine the muscles and organs first, which can give you a better understanding of how the nervous system interacts with the rest of the body. It also ensures that the nerves are not accidentally damaged during the initial dissection process.
Because dead body tissue for dissection is preserved with formaldehyde, which when generously portioned onto the skin can cause severe cases of cancer.
After the dissection, clean up by disposing of all biological materials properly as per safety guidelines. Wipe down the dissection tools with a disinfectant solution and wash your hands thoroughly. Clean the dissection area with a disinfectant to ensure proper sanitation.
Dissecting pins are sharp, pointed, stainless steel pins used to hold and secure dissected specimens or tissue in place during dissection. They are commonly used in biology and anatomy labs to keep the specimen steady and allow for easy examination and dissection.