Earthworm Essays

Nicholas Hack-Irvin Bio 104-06 October 25, 2015 Earthworm Response to Spicebush Methods: Using a plastic container lined with wax paper, two pieces of construction paper were cut to each fit the width of the box. These two pieces of construction paper were placed in close proximity to each other to ensure that both sensory feedbacks would be noticeable to the earthworm when placed in between the two pieces of paper. One strip of paper was lightly covered in water, where the other piece of paper was

Discussion: The digestive system of an earthworm is suited to the their habitat underground in many ways. The Prostomium is at the mouth and makes cracks for the earthworm to go through to allow the worm to move around. The digestive system is also suited to the worms habitat because the organs are spaces out so that the worm can stretch out to move through the soil easily. The frog’s digestive system is suited to its habitat because the tongue is attached to the front of the frogs mouth to allow

side of the earthworm consists of two different colours. The back side of the earthworm is referred to as the dorsal side and the front side of the earthworm is referred to as the ventral side. A distinct observation is the fact that the ventral surface of the earthworm is a lighter colour than the dorsal side. During the dissection, a small ring like structure may have been observed. This ring like structures, known as segments, are found around the body of the earthworms. Each earthworm are made

environment. Earthworms are exotic in many areas that they are introduced to over time. Earthworms are a major influence on soil composition, but to this day there is still many unknown factors about the species (Zirbes L et. al 2011). Responding to the environment is important for many species to be able to be productive in their ecosystem. Studies have shown have shown that earthworms use their senses when responding to their environment (Zirbes L et. al 2011). An unknown factor of earthworm species

Introduction Aim: To compare the effectiveness of compost and earthworms on the germination and yield of a spinach crop. Motivation: Fertilisers are mixture of chemicals that add nutrients to the soil to establish better yielding crops (Berger, 2013). Though these products have proved to provide many beneficial aspects to the agricultural sector, they have many negative environmental consequences. Fertilisers contain many substances, including mostly potassium, phosphorus, sulphur, calcium, magnesium

kingdom Animalia has a broad variety of members, such as the earthworm, the lion, and the jellyfish, who belong to different classes and are, therefore, placed all over the spectrum regarding complexity. By comparing the various body systems of these classes, it can be concluded that the Mammalia class is the most advanced. The earthworm, which is a member of the Clitellata class, is very primitive in regards to its respiratory system. The earthworm does not have a specialized system for respiration, but

Materials: • Preserved Earthworm • Dissection Tray • Gloves (optional) • Safety goggle (optional) • Lab Apron (optional) • Scalpel • Probe • Dissecting Pins Method: • Earthworm should be taken from a preserving chemical as it prevents the earthworm`s organs from rotting. • Lay the earthworm on a dissection tray when dissecting as it holds the earthworm`s body in to place. • Gloves, lap apron, and safety goggle protect the hands, body, and eyes from any exposure to bacteria and chemicals while

Earthworm and Bullfrog comparison 1/14/2018 Dissecting the Animal Kingdom pd 7 pg1 The organisms i will be comparing are the Earthworm and the Bullfrog, the Earthworm is part of the phylum Annelid and the Bullfrog is part of the Phylum Chordate. The earthworm is a invertebrate and the Bullfrog is a vertebrate. This means that the Earthworm does not have a skeletal structure in its body but a bullfrog does. A key characteristic of both the animals is that they have bilateral symmetry

out, the carnivores would die out because they don’t have a source of food to eat. This would cause an extinction of all animals because the bottom of the food chain was taken away destroying the rest of the food chain. Some short term effects for earthworms would be that they Some short term effects for producers would be that they would start dying out because they wouldn’t have any sunlight to produce the food which they need to survive. Once the plants die out, the consumers would shortly die out

Earthworm has a long and thin body surface that provides the necessary of large surface area. Large surface area is increases the efficiency of gas exchange because it gives more spaces for gases to diffuse across their skin. Earthworms kept their skin wet through their behavior. They are behaviourally adapted to keep their moist during the day by burrowing deeper into

Today, earthworms are found all over the world due to their amazing ability to travel from place to place. these earthworms are known as 'peregrine' species. Once they introduced into a new area, they have another amazing ability that allows them to breed rapidly and colonise their new home and often outnumbering the

the reproductive system (Biologyjunction, 2015). d) Nervous System: The ventral nerve cord is located on the ventral side of the worm. Its size is about the length of its body. The ventral nerve cord carries signals to the brain in order for the earthworm to function. Figure 9 shows a diagram of structures in the nervous system (Infovisual,

The organism (earthworm, frogs, or fetal pig) should be taken from a preserving chemical as it prevents the organism’s organs from rotting. 2. Lay the organism (earthworm, frogs, or fetal pig) on a dissection tray with its ventral side up. Garbage bag is sometimes required to prevent any internal fluids from splashing onto the surface. 3. Rinse the organism (earthworm, frogs, or fetal pig) in warm water as it reduces the amount of chemical

Charles Darwin was born in England with a degree in theology. He not only was interested in religion, but he loved plants and animals. Because of this he became a naturalist, a scientist who studies nature. He was invited to to the Galapagos Islands on the HMS Beagle, a British ship. Darwin saw this as an opportunity to explore other countries and see what is there. While he was there he studied and collected many fossils. Some of his most important discoveries were made on the Island. On this five

Charles Darwin studies the earthworms and the pigeons. Charles study the earthworms because he was a naturalist, an expert in geology. He was very fascinated by earthworm behavior. He tested intelligence, food preferences, and sensitivity to noise, light and sound. Darwin’s father knew he couldn 't do this experiment, so Charles had to prove him wrong. He tested the worms by putting them under a lamp of a candlelight and their sensitivity by holding “a poker heated to full redness near some worms”

“teeth” like structures. Once ground the food is handed out to the intestine, where nutrient is absorbed into the blood vessels and taken around the body. After the intestine, the excess waste is removed through the anus. The digestion tract for earthworms is much like the crayfish. Food enters the mouth and gets pushed down into the esophagus by the pharynx. Next in line is the crop; an organ very similar the cardiac stomach. In the crop food in held until it is moved into

Respiration is the antithesis to the process of photosynthesis, in which carbon dioxide and water is taken in by autotrophs, along with sunlight, to make glucose and oxygen. Autotrophs include any photosynthesizing organisms, such as plants and algae, all of whom also undergo respiration. The products of photosynthesis are taken in by heterotrophs, organisms who cannot make their own energy and rely upon autotrophs for food. The by-products of their respiration - carbon dioxide and water - are then

Earthworms had long been extinct in North America since the Ice Age but started spreading back there following Columbus’ voyage, in result they greatly changed landscapes; aerating soil, making it easier for some plants to thrive, while diminishing others habitats. As a result, the earthworm started transforming America, as did another item, tomatoes. The common culture is most certain that Marinara

Invasive Species Invasive, alien species, those which colonise, expand and out compete native species (Smith & Smith, 2009), are a major threat to our habitats, terrestrial and aquatic species, and biodiversity. Agricultural and leisure industries are affected as well as conservation welfare and the continued wellbeing of man, flora and fauna. Whole ecosystems can be distorted and the economic cost of awareness, prevention and eradication systems is substantial. Most invasive species have been

almost completely, it would leave lasting effects on many organisms such as an earthworm, a shark, a maple tree, a saguaro cactus, or a teenager. While looking at an earth worm, the short term effects would be beginning to see more of the species during the day. Earthworms are nocturnal, so they live beneath the surface when it is daylight and come out once the sun goes down. Because of this in the long run, the earthworm species would eventually become overpopulated; they would be above the surface