The crab of Phylum Anthropoda is much more advanced and complex than the sponges of Phylum Porifera. One of the main differences that makes crabs more advanced is the fact that crabs have a body cavity which allows them to have different organ systems‚ this is called coelmate. A sponge does not posess a body cavity‚ which is called acolemate‚ but they do posess a Gastrovascular cavity. A Gastrovascular cavity has only one opening‚ the mouth/anus. Being a coelomate is more advanced because it allows
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In this article‚ the author asserts that spreading the zebra mussel in North America is a threat since this invasion cannot be stopped‚ and provides three reasons of support. However‚ the professor explains that there are some ways to stop the spreading of this fish because our knowledge is increased and it is not limited. He also contrasts with the author’s reasons by proving the additional convincing information. First‚ the author points out that the invasion of the zebra mussles might be unstoppable
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Although evidence has shown that there is a recent change in the increase of the cownose ray that has caused a large boom‚ it’s Well known that the cownose ray is a predator of shellfish when the water becomes warm. The marine systems caused by the removal of sharks remain misleading‚ due to the significant declines in large coastal sharks in the northwest Atlantic Ocean‚ which caused dramatic increases in abundances of smaller elasmobranchs (referred to as “Macropredators”) over the predation release
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Lacsaman‚ Sakhiah T. April 16‚ 2013 ADMB002 Case: Tubbataha Reef 1. I do not agree on the proposal for development. Tubbataha Reef is one of those heavenly places that Philippines should be proud of. The public is now more aware of the reef and its importance to the environment and the economy. After many years of neglect‚ there are now greater and more widespread efforts to save Tubbataha reef. And yet‚ it seems that all these efforts are not well-coordinated. In fact‚ some of
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Black Banded Sea Krait: What We Know So Far Did you know that the venom of a Black Banded Sea Krait is ten times more toxic than that of a rattlesnake? Maybe this is why people are scared of snakes. Though their venom is very toxic‚ humans rarely get bitten. Unfortunately‚ the population is being threatened by habitat destruction. The Black Banded Sea Krait has its own ways of adapting to marine life‚ where it lives‚ and how they produce more of their species. The Black Banded Sea Krait has to
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Fishing Fishing is something that everyone can do! There is so many different variates of fishing. There is freshwater fishing and also saltwater fishing. Fishing is one of those things that is very simple‚ but can also be very difficult depending on what you’re fishing for or what you’re fishing with. Fishing can be done by everyone even though fishing is hard for some people. Fish behavior has been studied by many different people. Many people have come to the conclusion for bass fishing that
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Section 1: Manatees belong to the order Sirenia‚ which also includes the manatee’s relative in the Pacific‚ the dugong‚ (Dugongdugon). Sirenians evolved from four-footed land mammals more than 60 million years ago. The presence of tiny pelvic bones in manatees‚ shaped differently in males and females‚ is evidence of their terrestrial ancestry. The closest modern relatives of the Sirenia are elephants‚ aardvarks‚ and hyraxes‚ small furry mammals that resemble rodents. These animals are large‚ fully
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Attention‚ have you heard that millions of people travel to popular beaches throughout the world‚ but some people don’t realize that the oceans are becoming more damaged? People don’t realize that the ocean is suffering from‚ pollution‚ overfishing‚ plastic‚ garbage‚ etc. Not a lot of people notice this is happening to the oceans. This is why we need to stand up and stop some of these things from damaging the earth’s oceans. The ocean is a place people enjoy traveling to every year‚ but most people
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Airlie Beach Airlie Beach is a small‚ but lively town in the Whitsunday area of Queensland in Australia. It has a relatively small population of less than 10‚000. The town is an access point to the Great Barrier Reef. A boat trip will get you there in 2-3 hours. Airlie Beach has a tropical climate. Summers are humid‚ wet and hot‚ with day time temperatures hardly ever dropping below the 25C mark. Summer nights are warm and balmy. Although winter is cooler and less humid‚ the temperatures stay warm
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The Glaucus Atlanticus I wrote about the Glaucus Atlanticus‚ I will be talking about its adaptations‚ abilities to survive and‚ where it can be located. This animal is really interesting because it can be kept as a pet. It has many other names but one is the blue dragon. Although it is called the blue dragon it is a sea slug. The Glaucus Atlanticus can adapt to a lot of things‚ here are some of them. The Blue Dragon can adapt to any kind of poison there suis in the world. They can also get
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