Earthworm

Gas Exchange adaptations in Earthworms, Fish and Humans Emma Booth All living organisms need Gas exchange in order to generate energy which is formed through this process, allowing other life processes to be carried out enabling them to survive and reproduce. In aerobic respiration, oxygen and carbon dioxide are the main gases involved. Gas exchange is when oxygen is diffused into the bloodstream whilst carbon dioxide is released as a waste product. For diffusion to be able to occur as quickly

Human Body, Crayfish, Earthworm, and Frog All organisms have different digestive systems, respiratory systems, and circulatory systems. They all need to digest their food, breathe, and circulate their blood, but how do they do it? You will learn how the Human Body, Crayfish, Earthworm, and Frog do those things, and what the similarities and differences are. First of all, the human body, crayfish, earthworm, and frog all have many similarities and differenced about how their digestive system works

course are the following: the earthworm, the clam, the crawfish, the starfish, the perch, and the fetal pig. We will discuss each organism’s digestive system associated with their eating habits, discuss the changes in the digestive systems from the more primitive to the more advanced, and discuss how these advanced characteristics improved the efficiency of the organism’s digestive system. The first organism we will talk about is the earthworm. Starting with earthworms in this report gives a bigger

in their body. Some organisms may share similar body systems while others have absolutely nothing in common. Several of those organisms include humans, pigs, crayfish, and earthworms. From their mushy, gushy organs to their soft, gentle skin, you may think, “How are humans and pigs possibly alike? Or a crayfish and an earthworm?” In many ways they may not be, but in other ways, they are very much alike. The body systems that will be compared and contrasted of these organisms are the nervous, circulatory

Since the time of Darwin (1881), there has been a general perception that the earthworms are beneficial ecosystem engineers that significantly influence soil processes and ecosystem functioning. This has been shown in agricultural systems over the years, where earthworms increase nutrient transformation and plant nutrient uptake (Syers and Springett 1984; Edwards 2000). In addition, earthworms have been put to a use in organic waste management (Edwards 2000). Despite these beneficial effects in agriculture

Velocity Figure 6. Plot of Substrate Humidity vs. Velocity Figure 7. Plot of Substrate Component vs. Velocity Conclusion & Discussion Overall, this experiment studies the influence of roughness, humidity and components on the behavior of earthworms. To test the impact of these factors, three experiments are

Introduction The plant used in this experiment was the Alaskan Pea plant (Pisdum stativum) and the earthworms used in this experiment were called red wriggler worms (Eisenia foetida (Yard, Eisenia fetida). In order to attain prime growing conditions for the Alaskan Pea plant (Pisdum stativum), seeds should be planted approximately 1-1.5 inches in the ground and 2 inches apart. The plants should germinate in 7-14 days with a rate of 90% germination success and after a few weeks, the pea plants should

experiment. A metabolism is a chemical occurrence that allows organisms to live. Without a metabolism every organism would be dead. Measuring the different CO2 levels will be my dependent variable and my independent variables will be Lubricina (earthworms) and the tests that will be applied. Biology is the study of life and sensory takes a huge part of this. Sensory allows organisms to feel a sensation that delivers a message to the brain telling you if the situation is dangerous or not. Sight

Spectracide is a common insecticide, its active ingredient is malathion. Malathion is an organophosphate that has been registered for use in the United States since 1956. In 2012, 1-3 million pounds of malathion were sold (EPA). Malathion functions by inhibiting the enzyme, acetylcholinesterase, by phosphorylation of the serine residue at the active site of the enzyme (EPA, 2016). This inhibition causes acetylcholine accumulation which leads to neurotoxicity in the central nervous system and peripheral

The study was carried out in San Clemente Island (SCI; 118° 30’ W, 33° 00’ N), the southernmost of the California Channel Islands, located approximately 109 km west of San Diego, California (Fig. XX). The SCI is under the administration and management of U.S. Navy and is not open to civilians, except by the permission of the naval authorities. The island covers 14,764 ha (147.64 km2) area extending 34 km north-south and ranges in width from 2.5-6.5 km. The diverse topography of the island (a steeply