Essay on Frogs

Both the right and left atrium contract causing blood to flow though the two valves, and then into the left ventricle. The left ventricle pumps blood into the systemic circulation through the aorta. This systemic circulation system is much bigger than the pulmonary circulation system, which is why the left ventricle is so big. The blood on the left side of the heart is oxygenated. It becomes oxygenated when the deoxygenated blood passes through the right atrium and then flows into the left ventricle. It is then pumped along the pulmonary artery into the lungs where it is oxygenated. It then travels through the pulmonary veins back into the heart. It enters through the left atrium and then travels to the left ventricle. This process is repeated over and over again, to make blood continuously flow through the heart, lungs and body. This process ensures that there is always enough oxygen for the body to work

Likewise, Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle, forming the complete circulation.

    Recently, an invasive and lilliputian frog has had a detrimental effect on the Hawaiian environment. Originally from Puerto Rico, the amphibian arrived in Hawaii and spread like a plague. Such a small frog cannot have that big of an impact, right? Wrong. The Coqui frog is a damaging invasive species of the Hawaiian islands due to its lack of natural predators and adaptability, dangerous eating habits, and its easy distribution among the state.

In a normal human being the heart correctly functions by the blood first entering through the right atrium from the superior and inferior vena cava. This blood flow continues through the right atrioventricular valve into the right ventricle. The right ventricle contracts forcing the pulmonary valve to open leading blood flow through the pulmonary valve and into the pulmonary trunk. Blood is then distributed from the right and left pulmonary arteries to the lungs, where carbon dioxide is unloaded and oxygen is loaded into the blood. The blood is returned from the lungs to the left

Some recommendations that we have to help the Foothill Yellow-Legged Frogs incorporates the government. The government is able to help by putting these amphibians on the endangered list and providing laws to protect them. Putting restrictions on areas where these frogs live to protect their population can help these frogs grow, and those who disturb their population should be fined. Another way these frogs can be helped is to promote volunteering for nonprofit organizations such as Tule Ponds. By promoting volunteering, habitats can be restored by acts such as clearing out invasive species, like we did during our service project. Lastly, regulating trade can significantly help while protecting these frogs. This prevents invasive species from taking over the native ones and will allow habitats to grow peacefully. By reducing the number of invasive plants in the area, this can protect the habitats of these frogs as well as other

The mountain yellow-legged frog is declining due to the introduction of trout, contaminants, increased levels of ultraviolet radiation, and the fungal disease, chytridiomycosis. David Bradford, one of the first witnesses to the decline in the late seventies, noticed the species dropping because of the red-leg disease. Because this is a secondary infection, the frog’s immune system was weakened before the disease became existent. The chytrid fungus was first cited in the Sierra Nevada in 2001, brought here from African clawed frogs, but studies have suggested that the disease has been evident since the mid-‘70s. Nearly three decades later, the mountain yellow-legged frog is still declining. Currently, with a ninety-eight percent decline, there

The whistling tree frog does not have as many infected or dead frogs as scientists expected. Researchers theorized that the frog has evolved slightly or those who were infected as juveniles survived and became immune. Their habitat is also play a role in their

In their movements, northern leopard frogs can encounter native grass prairie as well as crop fields and grazed pastures that potentially can act as barriers to their movements. Since grassland prairie and wetlands in the PPR have been greatly reduced, the wetlands that are highly depended on by the northern leopard frog to complete its’ life cycle in the prairie pothole region have become separated by greater distances. Depending on the cover type through which a frog must move, it can become exposed to the sun, wind, and other environmental factors for longer periods of time that, in turn, could cause them to lose water faster than if moving through a more naturally vegetated area. In addition, they may become more visible to predators.

What was the reason you chose to research about this species (topic)? The reason I chose to research about this species was because I thought it was a somewhat rare species that is not really heard from in public or rather often and I feel like I can teach someone about this species and at the same time learn myself further more about this species while I do this research or project as I would call it. A problem that I would say this species faces is that it is becoming extinct because of the small amount of capacity that shelters can only hold for frogs therefore, they are becoming extinct because there is no room for these amphibians to survive in and another problem I would say that that this specie faces is that there isn’t much information as there are to other species

I think everything goes in a perfect way as it’s the first time for us to teach students. However, the time was very short but we controlled every thing and we start and end on time, rather than that the students were very exiting and interesting to know about the life cycke of the frog, and they did the activities and participate and some of them were asking questions about the frog, for example, where the frog live?. In addition, they were engage wich ,eans that they understand the lesson.

Our results shows that are high percentage of people who actually believed the misconception, which human can get warts by touching frogs. We would inform our audience to correct their misconception by providing the evidences to explain the reason in detail that I listed below. This might be shock to many people who believed in it, but it shouldn’t affect people’s life that much. Because this misconception will only cause people to keep away from frogs, which is not a bad thing from the view of health consideration, because for most of the wild frogs, they could carry bacteria, parasites, and diseases and absolutely people want to keep away with. They might also become very upset since I declare the conclusion for saying it is a misconception,

Panamanian golden frogs used to be plentiful in the town of El Valle de Anton. However, a catastrophic decline in these toxic frogs has occurred. Once researchers at El Valle amphibian conservation center noticed the disappearance in these amphibians, the remaining frogs were transported to a “frog hotel” ,where their condition and behavior could be monitored. Kolbert's stated that the National Zoological Park in Washington and a microbiologist in Maine have gathered evidence that could have been the possible answer to the frog's decline. The mortality of the Panamanian frogs could have been caused, due to a non native fungus. Chytrid fungi can weaken an amphibians immune system, thus leaving them prone to any type of disease. However the question remains how did the Chytrid fungi travel to Panama? Many presume that humans have introduced this foreign fungus that lead to the extinction of the once plentiful golden amphibians.

has to work harder pumping blood to the rest of the body. Blood in our

The heart is what keeps all living breathing species alive, animals or humans. If the heart was to shut down but the nervous system continued and was active, it would not matter. The entire body would shut down because once the supplier no longer delivers what is needed; organs will no longer function correctly, therefore causing irreversible damage. Arteries are what carried the rich oxygenated blood from the heart to the rest of the organs throughout the body. The Veins are what bring back the carbon dioxide blood to the heart. It then has to be put through a cycle so that it can be shipped back out. Blood travels from the right atrium through the tricuspid valve, to the right ventricle. From there, it is pumped to the lungs, the oxygen-rich blood goes to the left atrium and then through the mitral valve to the left ventricle where it goes to the aorta to be pumped around the body (Colombo 7). What looks to be a complicated process that would take hours or minutes is actually done in a matter a seconds.

Frogs, toads, caecilians, and salamanders are the members of the class Amphibian (amphi- meaning “on both sides” and bios- meaning “life”). These members always require water for reproduction. Most Amphibians undergo metamorphosis, which is a usually degenerative pathological change in the structure of a particular body tissue. And, in the case of Amphibians, it is the changing of a tadpole into