It’s an advantage because the worms can get what they need to survive, like food and oxygen. But, it is also a disadvantage because since their hydrostatic skeletons depend on hydration, where they live might not have the weight of fluid required for their body. Secondly, planarians and earthworms are different types of worms. Planarians are flatworms and earthworms are segmented worms. Planarians have the advantage of being able to asexually reproduce by regenerating, but earthworms are unable to do that, which is a
[animal-testing.procon.org] Researchers in Aston University have made it known that it is not worth taking the lives of these animals for testing, because the things we’re trying to make happen with human bodies is very different from the animal body. The anatomic, metabolic, and cellular differences between animals and people make animals poor models for human beings. There is a big percentage from the 1950’s up till now that animal testing is flawed by not being correct when it is given to the people it is for. So why not just stop the animal experiments that are not just killing, but also torturing the animals.
These new differences now prevent the bears from interbreeding, showing how the change in geographical positioning has caused them to stop interbreeding, and showing allopatric speciation. The final example of allopatric speciation is that of the Galapagos Finches, more commonly known as ‘Darwin’s Finches’. When on his trip to the Galapagos, Darwin saw many different birds, but assumed them to be completely different, namely blackbirds, gross beaks and finches. However, upon later investigation he found for them to all be finches, but each slightly different, through physical characteristics, and
It is a very real possibility that by releasing an animal from captivity and essentially treating them as a human that the animal could face complete loss of their natural habitat and may end up extinct or near-extinct due to hunters targeting them. There are also ethical issues that arise from animals being treated as human beings instead of as animals. The first of these is that animals may or may not possess the same cognitive abilities of humans. According to Barlow (2013), “There are a million species of animals. I have studied fewer than a dozen.
But the parrotfish puts mucus on their body, so then the eel can’t eat the parrotfish. Also so whatever other predators try to eat parrotfish they can’t actually smell them so they can’t scent them to
In his poem, The Tyger, Blake poses the question of who created the fearsome beast. The implication is that, any Deity capable of creating the precious lamb should be questioned about his or her motivation for building a killer. Perhaps Blake was trying to shed some light on what he considered to be the evil nature of man. However, by using two diametrically opposed images (The Lamb and the Tygre), I think Blake misses a better opportunity. Yes, the Tiger is a natural predator with vicious killing instincts… It will also care for its young as any mother might and protect the pride from outside threat.
Biology Exam Review Evolution Adaptation and Variation * Organisms are constantly faced with challenges that limit their ability to survive * Weather, famine, competition for food, space, are all challenges * Organisms that survive and produce offspring are able to pass along their genetic information that helped them to survive * Extinct: vanishes from earth Adaptations and Survival * The colour and structure help animals to camouflage * This makes them almost invisible and predators cannot locate them * More of the camouflaged organisms survive and reproduce * Adaptation: a structure, behavior, or physiological process that helps an organism to survive in a specific environment * Hibernations
It is inhumane to keep animals in small enclosures like that where they wouldn’t even get room to stretch their legs or get the chance to behave like they would naturally in the wild. The more intelligent animals (dogs, cats, pigs, primates etc) suffer from severe cases of loneliness because they lack the rights to run around and be free. How would you feel if you could not run around in a free environment? My second argument is using animals for testing cosmetics. It is estimated that over 1 million animals are killed due to companies that test their products on animals and those companies tell us that they use animals to test the safety of their products.
This would mean that any organism whose niche does not incorporate the new conditions are more likely to move away from the area, or be wiped out - this is more likely to happen to the more terrestrial animals. This then has a knock-on effect on the ecology and economy of the surrounding area. Food chains may become disrupted with those animals (often smaller animals) that become lesser in number or are wiped out completely, in turn decreasing the number of the animals on the higher trophic levels by limiting their food source. As well as this, many countries and/or cities are famous for a specific animal whether that's a dish, or a national symbol. Others are famous for nature reserves.
In the book it says,“Most parasites live in more than one kind of animal, but they’re all trying to reach their final host, the ultimate vector”(60). Parasites can kill their host but once their host is dead they die along with it in Peeps it says,“One thing about parasites—they’re great at living inside other organisms, but once they hit the outside world, they’re not so tough.”(109) In some ways the parasite situation form the book could be true only some aspects could. The unusual strength, night vision, heightened senses, and an affinity with rats cannot be a realistic benefit form a sexual transmitted parasite. Parasites