Saturday, March 21, 2020

Compulsory voting should be abolished. No citizen should be essays

Compulsory voting should be abolished. No citizen should be essays When people talk about compulsory voting some say that yes it should be a law while others will say no it should be abolished, the really smart people might say that compulsory voting isnt a law its compulsory enrolment that is. These people are part right compulsory enrolment was introduced in 1911 which ment that every person has to enrol on the electoral rolls. Soon after this the compulsory voting legislation was passed very quickly and quietly through parliament as a privates members bill in 1924 On the 3rd of March 1996, immediately after the polling day for the 1996 federal election the Newspoll Market Research held a national survey which was to do with compulsory voting at federal elections, 74% of these people who were survey supported the idea of compulsory voting. This survey was done on behalf of the AEC. The AEC still doesnt have an official view on whether enrolment and voting should become compulsory or not . The Term Compulsory voting is actually incorrect. It is only registration and attendance at a polling place this is compulsory. The voter does not have to vote properly when they enter the ballot box they can simply walk in there get their name signed off and simply go straight to the box and place their paper in the box and walk out. So the law on compulsory voting is not clearly defined because a person still has the choice to vote or not but they dont have a choice when it comes to registering as a voter. There is a very strong argument against compulsory voting, some of these arguments are some of these arguments are that it is undemocratic to force people to vote, those people who are stupid and those who have little interest in politics are forced to the polls, it could increase the amount of donkey votes and informal votes, and that resources must be allocated to determine whether those who failed to vote have a valid or sufficient reason . All of these comments can easily ...

Thursday, March 5, 2020

Spiracles Aid in Breathing on Fish, Whales, and Insects

Spiracles Aid in Breathing on Fish, Whales, and Insects Spiracles are breathing openings found on the surface of insects, certain  cartilaginous fish  such as certain species of  sharks, and stingrays. Hammerheads and  chimeras dont have spiracles. In fish, spiracles are composed of a pair of openings just behind the fishs eyes that allow it to draw oxygenated water in from above without having to bring it in through the gills. The spiracles open into the fishs mouth, where water is passed over its gills for gas exchange and out of the body. Spiracles aid fish in breathing even when they are lying on the ocean bottom or when theyre buried in the sand.   Evolution of Spiracles Spiracles likely evolved from gill openings. In primitive jawless fish, spiracles were simply the first gill openings behind the mouth. This gill opening eventually separated as the jaw evolved out of the structures between it and the other gill openings. The spiracle remained as a small, hole-like opening in most cartilaginous fish. Spiracles are useful for the types of rays that bury themselves in the ocean bottom because they allow them to breathe without the aid of exposed gills. Primitive bony fish with spiracles include the sturgeon, paddlefish, bichirs, and coelacanth. Scientists also believe  that spiracles are associated with the hearing organs of frogs and some other amphibians. Examples of Spiracles Southern stingrays  are sand-dwelling sea animals that use their spiracles to breathe when they are lying on the ocean bottom. Spiracles behind the rays eyes draw in water, which is passed over the gills and expelled from its gills on its underside.  Skates, cartilaginous fish  that have a flat body and wing-like pectoral fins attached to their head, and stingrays sometimes use spiracles as their primary method of breathing, bringing oxygenated water into the gill chamber where it is exchanged for carbon dioxide. Angel sharks are large, flat-bodied sharks that bury themselves in the sand and breathe through their spiracles. They lie in wait, camouflaged,  for fish, crustaceans, and mollusks and then lunge to strike and kill them with their jaws. By pumping water in through their spiracles and out through their gills, these sharks can absorb oxygen and eliminate carbon dioxide without constantly swimming, as more mobile sharks must do. Insects and Animals  With Spiracles Insects have spiracles, which allow air to move into their tracheal system. Since insects dont have lungs, they use spiracles to  exchange oxygen and carbon dioxide  with the outside air. Insects open and close their spiracles through muscle contractions.  Oxygen molecules then travel via the insects tracheal system. Each tracheal tube ends with a tracheole, where the oxygen dissolves into the tracheole fluid. The O2  then diffuses into the cells. The blowhole of the  whale  is also sometimes called a spiracle in older texts. Whales use their blowholes to take in the air and dispel carbon dioxide when they surface. Whales have lungs like other mammals rather than gills like fish. They have to breathe air, not water.