House Crickets Lab Report

Pill bugs, Armadillidium vulgare, are terrestrial isopods [Gibbs, Smigel, 2008]. Thus, they are not very well adapted to land [Gibbs, Smigel, 2008]. Water loss is a reoccurring theme because terrestrial isopods lack “cuticular lipids and the elaborate spiracular apparatus of insects” [Gibbs, Smigel, 2008]. Most of the water loss is evaporation from the respiratory organs [Gibbs, Smigel, 2008]. The respiratory organs are called pleopods, and are gill-like organs “located on the ventral abdominal segments” [Gibbs, Smigel, 2008]. Interestingly, pill bugs are capable of conglobation, the ability to roll up in a ball [Gibbs, Smigel, 2008]. In addition to protection from predation, conglobation may also conserve water [Gibbs, Smigel, 2008].

This study was undertaken in order to compare the 〖CO〗_2 output of a cricket (Acheta domesticus) as a way to indirectly measure its respiration. This was done by observing the 〖CO〗_2 output of a cricket (μL/min⁡) over different levels of DNP, 2,4-Dinitrophenol. It was shown that the crickets subject to DNP (n=10) had a significantly higher 〖CO〗_2 production rate (p= 7.4e-10) than the control crickets(n=10), that were not exposed to DNP. This indicates that the presence of DNP induced a greater of respiration rate in crickets. There may be several factors that contributed to these results such as the cricket’s physical size and its health conditions. These factors vary between individuals and may affect the degree of respiration. A better insight

Answer 2: The respiratory system functions in the exchange of gases with the outside environment. Oxygen is inhaled through the nasal cavity or the mouth, and it travels to the alveoli in the lungs. There, the capillaries exchange the oxygen for carbon dioxide. The oxygenated blood flows back to the heart from the lungs. It enters the left side of the heart and is delivered to all the body tissues via the aorta. In the capillaries of the body tissues, oxygen is exchanged for carbon dioxide. This deoxygenated blood flows back to the right side of the heart and then to the lung. In the capillaries that run across the alveoli, carbon dioxide is exchanged for oxygen that has recently been inhaled. The carbon dioxide will then be exhaled through the mouth and nasal cavity.

* How would you describe the structure and function of this animal’s respiratory system? Include any unique characteristics.

Purpose: We want to see if putting a worm or organism in different temperature will change the rate of CO2. We predict cold will make the process slow down. Hot will speed it up, and with room

During pulmonary ventilation, the movement of air from the environment to the lungs of the organism, the frog will hold its breath for periods of time before taking another breath. This sequence of breathing is relative to the motion of the frog. Therefore, if the frog is at rest then the breathing is slowed and if the frog is in motion then its breathing is be more rapid. The pulmonary artery has the ability to alter the amount of blood flow to the lungs depending on the amounts of gases needed (Tattersall, Currie, & Le Blanc, 2013). The second branch is called the cutaneous artery which is in charge of supplying blood to the skin. The location of cutaneous gas exchange occurs across the surface of the skin and oxygenates the blood from the cutaneous artery. The leopard frog benefits greatly by using the cutaneous gas exchange in conjunction with the gas exchange performed in the

Small air sacks called alveoli are at the tips of the bronchioles. When air reaches them, the oxygen concentration is high, which causes diffusion into red blood cells travelling through pulmonary capillaries (7). The red blood cells then distribute the new oxygen to the rest of the body. When they reach the alveoli again, they exchange carbon dioxide (a form of cell waste) for new oxygen, and repeat the process. The carbon dioxide is moved through the bronchioles, bronchi, and trachea in the form of exhalation.

For maximum dung burial in spring, summer and autumn, farmers need a variety of species of beetles coinciding with periods of activity. In the colder areas of the state Victoria, the large Austrian species, which is usually 3.0 cms long, is matched with smaller, around half of its size; sub-tropical Australian species. The Austrian species beetles are less adaptable to cold weather, so are slow to recover from the winter cold and produce only two or three generations of offspring from late spring until autumn. The Australian beetles, which multiply rapidly in early spring, give birth to three to five generations annually. The French species is a temperate-climate beetle, so it prefers the climate of northern and coastal areas of Victoria and

The glow worm’s habitat is undisturbed woodland and caves around the world. Glow worms are mostly active during night which is when they can be seen glowing. They are one of the few insects that are found inside the Arctic Circle. The glow worm is famous for having a green and yellow colored light on the end of its tail. Glow worm’s main prey is snails, slugs, and insects. Their predators are spiders, birds, and centipedes. The glow worm’s conservation status is threatened and the number of species is 12. The average lifespan for a glow worm is up to 5 months. A glow worm is an omnivore and is up to 1-2 inches long. The glow worm also has a shell like skin type.

It is undoubtedly the case that the earthworms are stressed by removing them from the soil using detergent. However, the earthworms were quickly washes to remove and traces of detergent. During the experiment care was taken not to hurt the worms further and they were then returned to the soil. Data Collection & Processing Raw

They have a system of tubes which carries oxygen to carbon dioxide away from the cells. The respiratory system of the honey bee is made up of a cycle of tubes called the trachea. For example higher groups or species of animals oxygen has been taken throughout the body by the blood, however in bees including all insects, blood cannot be used to transport oxygen, instead the trachea are used.Introducing the system of breathing tubes or tracheal for gas exchange, is associated with the outside world called the spiracles through which air is worn in and removed

Boboltz claims that “crickets require 12 times less food than cattle and half as much as pigs for the same amount of protein” (Boboltz 3). This means crickets don’t need a lot of food. Because of this crickets don’t need a lot of resources and produce a lot more so we don’t run out. Bugs are also cold-blooded and are more efficient of keeping themselves warm. This indicates that bugs can keep themselves warm and you don’t need to keep them warm. This is important bugs don’t need anything to keep them warm, so you don’t need a lot of resources. In conclusion bugs don’t need a lot of resources. In conclusion bugs don’t need a lot of

By comparing the carbon dioxide output of a cricket to that of a hamster, we observed that on a per gram basis, the cricket’s carbon dioxide output was significantly lower than the hamster’s. The difference in carbon dioxide output in the two species may have been caused by the absence of lungs in insects, which in contrast, is a key organ of a mammal’s respiratory system. In a mammal, the lungs function in the respiratory system by providing a large surface area for incoming oxygen to enter and the removal of carbon dioxide gas from the mammal’s body providing highly efficient respiration. In contrast to mammals, insects obtain required oxygen for respiration through a series of small openings called spiracles that are found in the insect’s

Insects may not be as active during overcast conditions. Only two beetles were captured during the duration of this experiment because local beetles may not have been within range of the light source and it is still too early in the spring for an excess of beetles. This study needs to be improved by extending the number of nights each light is utilized and by testing the different light colors at different seasons of the year. References: Adriana, D. A. and L. Chittka.

To better understand bedbugs and their behavior, it is important to understand their life cycles. The female gets inseminated by the male suddenly and the female is shocked and runs away. The female can lay 1-12 eggs per day (Chordas). They usually lay them on rough surfaces so the eggs can easily stick to it and are usually located in cracks and crevices. The eggs hatch in 6-17 days. They become Nymphs once hatched and require 5 blood meals in order to become adults and reproduce. Adults may live for 12-18 months as long as their environment stays warm and comfortable (Chordas). The total development time depends on the temperature. In 86ºF, it takes 21 days but at 65ºF, it takes 120 days. Adults and nymphs can survive for more than a year