Gas Exchange Lab Report

The Earthworm is a crucial component of the environment due to their interactions with soil which then, in turn, provides benefits to other living organisms such as their burrowing behavior, which allows nutrients, air, and water to delve deeper into the soil. After soil is swallowed by the pharynx, the food matter is sent through the esophagus and into the crop, where the soil is stored until it interacts with the gizzard. The main function of the gizzard to grind the soils so that it can enter the intestine, where gland cells within release fluid to aid in the process. When organic matter is finally excreted from the intestine to the anus through the worm through the process of casting, more nutrients are introduce into the soil that benefit plant life. The earthworm also has a brain located behind its pharynx, called the cerebral ganglia, that is crucial for movement. The

BIOL 152-35 Professor Weller 14 February 2012 Effects of Temperature on Goldfish Respiration Introduction This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process

Unit 5 Outcome 2 – Energy Metabolism Booklet The Respiratory System The respiratory system consists of the nose, mouth, pharynx, larynx, trachea, bronchi and lungs. These provide a passageway to allow air in and out of the body. Every cell in the body requires oxygen to survive. The primary function of the respiratory

Some plants and animals have to adapt to the amount of oxygen and visibility underwater. For example, plants have adapted to the amount of sunlight they receive in certain environments, and cattails and water lilies have adapted to be able to survive humid climates. For animals, certain fish like trout have adapted to clear and cool water with a large amount of oxygen. On the other hand, other types of fish, like catfish, are able to survive in an area with a low oxygen level and gloomy visibility. Since otters live on the land surrounding the water, they have adapted to be able to swim to catch their food. Frogs and alligators have adapted to their environment by being able to live on the land after coming from underwater as an egg. Lastly, beavers have adapted to use their teeth to create the dams they live

Secondly, the human body, crayfish, earthworm, and frog also have many similarities and differenced of how their respiratory system works. The crayfish respiratory system is the least complex. Crayfish have gills, which are used to release carbon dioxide and to pick up oxygen, by having a constant flow of blood. Frogs consist of nostrils and larynx, which opens up two lungs. The walls of the lungs are filled with capillaries. Capillaries are

When society thinks about starfish, perch, chordate, and fetal pig they become extremely curious about how their bodies operate because of how they are made up. I will give a brief synopsis of all animals before going into major detail about them. According to the online website named dictionary.com, Starfish are any echinoderm of the class Asteroidea, having the body radially arranged, usually in the form of a star, with five or more rays or arms radiating from a central disk; asteroid (dictionary.com). It is known that a chordate is an animal belonging to the phylum Chordata, composed of true vertebrates and animals having a notochord (dictionary.com). According to research, a fetal pig is an animal in the phylum Chordata and class Mammalia (dictionary.com). A perch is known to be a certain kind of fish with very spiny fins (dictionary). Starfish, perch, chordate, and fetal pig are some very interesting animals that possess some exclusive qualities both similar and different.

* Human * How would you describe the structure and function of this animal’s respiratory system? Include any unique characteristics. The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing.

The operculum is a late that forms a flap that covers the gills in bony fish. Since it did not have an operculum, the fish most likely moved water or air through respiratory organs by the mouth either pumping or changing shape. In other words, it is possible that Tiktaalik was capable of breathing through its mouth.Thus, Tiktaalik did not solely rely on gills for breathing.

A crayfish has feathery gills that are used for gas exchange. This feathery quality increases surface area to maximize the area where gas exchange takes place. Blood flows to the gills, releases carbon dioxide, and picks up oxygen. A starfish has papulae which are small, hollow, growths that act as simple gills. Respiration also occurs in the tube feet where the starfish picks up oxygen and releases carbon

METHODS The test subjects, O. rusticus crayfish, were collected from the White River.. Body length and body weight were measured with the use of a measuring tape and a gram scale. The rate of oxygen consumption was studied by the use of intermittent closed respirometry with a Q-box AQUA device. This was conducted by measuring the amount of dissolved oxygen present in the water chamber without removing the organism from the container so as to demonstrate the amount of oxygen consumed by the crayfish over a given set of time. By periodically measuring the amount of oxygen present in the water at an interval of twice per second, the rate of oxygen consumption can be

They have a single closed circulatory system consisting of a heart with a sinus venosus, atrium, and ventricle. Parallel blood capillaries called rete mirabile carry blood to the gas gland and allow it to diffuse to the swim bladder.

Imagine you are at the bottom of the ocean, and there are hydrothermal vents ejecting hot lava. Adding to your misery, there are huge amounts of hydrogen sulfide gas everywhere that are poisonous to your body. In reality, this is the giant tube worm’s ecosystem. Ecosystems are all of the living things (plants/animals) and the non-living things that live in a specific area and interact with each other. Ecosystems can be of any size. In an ecosystem, there are biotic and abiotic components that are all linked. The pelagic zone or “open ocean zone”, where the giant tube worm, an underwater animal that lives near hydrothermal vents, lives is located next to the continental slope/drop off. The water is much deeper here. At the surface, there is

Pig: Our fetal pig which we dissected is a female who was 100 days in the gestation period and has the length of 25 cm. In the pig dissection, we found the stomach and intestines. By the way it looks it seems to have similar functions of the human digestive system. The stomach breaks down the food while the intestine absorbs nutrients and water in the food. We also found the liver, pancreas, and colon. The liver filters the blood for toxin. In the respiratory system, we found the lungs, diaphragm, and trachea. Air goes into the snout, through the trachea, and into its lungs. The lungs would then release CO2 back up the trachea, and out the snout. The diaphragm compresses and releases the lungs so that CO2 could go out your

Is the circulatory system of arthropods more similar to that of annelids or of mollusks? Why?

Within the alveoli, the oxygen is transferred to the blood whilst simultaneously collecting waste carbon dioxide for excretion as we breath out. This transference is known as diffusion and is linked to the cardiovascular system.