Earthworm Ecology The key “take-home” message from the first reading on Earthworms‚ “The Importance of Earthworms as Key Representatives of the Soil Fauna‚” was that earthworms play a vital role in soil nutrient‚ water‚ and carbon cycles across the soils of the globe (with the exception of deserts and the arctic/antarctic). Earthworms are integral to soil nutrient cycles by making nutrients such as nitrogen‚ phosphorous‚ and potassium more available to plants. They are key to the water cycle
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Earthworm Dissection Lab Objective: To learn the anatomy of the Earthworm through dissections. Materials Needed: -15 pins -Scalpel - Dissection tray - Hand lens - Earthworm - Forceps - Probe - Scissors Procedure: 1) Gather your materials; dissection kit‚ dissection tray‚ and the earthworm. 2) Lay the earthworm onto the dissection tray dorsal side up. 3) Place a pin through the side of the third segment from the mouth‚ and another pin through the side
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is a from a pig. Pigs live on a farm. Sadly‚ humans eat pigs for ham‚ pork and bacon. Bacon is good for the heart. Hearts are inside the human body. Without a heart‚ a human could not live. Without humans‚ our world would be over come with animals. Animals are important for the human world. Animals prove food‚ so humans can grow and become strong. Humans can exercise to strengthen their muscles. Muscles are very important for the human body. They are also very complex item in the body but are very
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Crayfish are close relatives of the Lobster and resemble a small shrimp. They live in freshwater habitats in North America and Europe. The Crayfish has a joined head‚ thorax‚ and a segmented body. They range in colors for yellow‚ green‚ red‚ and brown. Crayfish are around 3 inches long. The Crayfish has two pairs of sensory antennae. The eyes are all long pieces of skin that allow the eyes to move. The appendages of the thorax have four pairs of walking legs which are also used to help find
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Have you ever wondered which body system helps bring oxygenated and deoxygenated blood to the heart? Well that system is called the Circulatory System or the Cardiovascular System. Have you ever wondered which body system helps bring air into the lungs? That system is called the Respiratory system. You are probably wondering why I am mentioning the Respiratory and Circulatory system? I am talking about them because‚ these are the two system that I am going to be comparing and contrasting in this
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Experiment 13.3 Earthworm Dissection. Author: William D. Dunlap Team Members: Class Experiment Date of Experiment: March 14‚ 2024 Date Experiment submitted: March 28‚ 2024 Class: Challenge 2 Biology Purpose The purpose of this experiment is to become more familiar with the tools and techniques of dissection. Background Dissection: “The action of dissecting a body or plant to study its internal parts”‚ (Definition by Oxford Languages). Dissection is one of the most important tools for growing a
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Description and behaviour A pig has a snout for a nose‚ small eyes‚ and a small‚ curly tail. It has a thick body and short legs. There are four toes on each foot‚ with the longer‚ middle toes used for walking. Pigs are omnivores‚ which means that they consume both plants and animals. Pigs will scavenge and have been known to eat any kind of food‚ including dead insects‚ worms‚ tree bark‚ rotting carcasses‚ excreta (including their own)‚ garbage‚ and other pigs. In the wild‚ they are foraging
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of an earthworm’s exterior anatomy and interior anatomy. The earthworm as a whole is considered the dependent variable as we cannot change it. However‚ the labels to be placed can be moved so they are the independent variables. My hypothesis is quite elementary. I believe that after studying the anatomy of an earthworm I will be better educated about it. Procedure: 1. Begin by reading about earthworm activity by clicking the Earthworm Guide 2. For the external anatomy‚ move each of the corresponding
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In a study conducted by Ratner and Miller (1959) the topic was to demonstrate classical conditioning with earthworms. The subjects of the experiment were 32 earthworms. In this experiment the unconditioned stimulus was the bright light‚ the conditioned stimulus was the vibration‚ the unconditioned response and the conditioned response was the responsiveness. The earthworms were broken down into four groups by random selection. Presented with the light for 2 seconds‚ which overlapped with the conditioned
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Introduction We know a lot about the human anatomy‚ its physiology‚ and how to treat the diseases that tend to disturb the balance between them‚ but‚ that was not always the case. It has really been that only in the past few centuries‚ scientists were able to dissect and experiment on other humans. Such experiments were the main contributors to our current knowledge in some fields of science‚ especially medicine. Dissections performed on rabbits‚ mice‚ chimpanzees‚ and other animals‚ along with some
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