Essays Tagged: "Species"

Biodiversity

sed variation of living organisms at all levels, from the variety of genes in populations of single species, through species, on up to the array of natural ecosystems.' This includes plants, animals, ... time. There are many separate ways in which we can study biodiversity. These ways include, genetic, species, community, ecosystem, and taxonomic diversity. Biodiversity can be best number of species i ...

(2 pages) 294 2 4.4 Apr/1997

Subjects: Science Essays > Environmental Science

No hopes for man? After a glance into "Ishmael", it seems like the world would function much better by the extinction of humankind.

hope for Gorilla? With Gorilla gone, will here be hope for Man? Similar questions arise whenever a species is threatened by our increasing presence on their habitat. These questions will inevitably b ... conquer it." It all began with the birth of agriculture. Agricultural living is what separates our species from all the other species that inhabit this planet. Man no longer had to rely on the nomadi ...

(2 pages) 75 1 3.5 Jan/2003

Subjects: Science Essays > Environmental Science

Biodiversity

Biodiversity in an ecosystem refers to all member species in an environment. Each member has animportant role to play within the ecosystem and the lac ... al to agricultureare yet another product of biodiverse ecosystems. Finally, the primary reason that species becomeendangered is due to the loss or alteration of their habitat or ecosystem. If biodiver ... the loss or alteration of their habitat or ecosystem. If biodiversity is threatened thenendangered species are threatened, possibly leading to extinction of a species.Biodiversity can also refer to g ...

(1 pages) 142 0 4.6 Jan/2003

Subjects: Science Essays > Environmental Science

MANATEES

Manatees are listed as endangered species. A species is endangered when it is considered in danger of extinction . Many other species ... likely to become endangered in the foreseeable future.Manatee habitat and the habitat of many other species in Florida have been lost due to our staggering development on all of Florida's ecosystems. ... of our garbage has become a great problem. Basically we are running out of space to put our garbage.Species extinction, pollution, depleted resources, that we see happening in Florida are occurring wo ...

(1 pages) 52 1 3.4 Jan/2003

Subjects: Science Essays > Zoology

Class Discussion on Evolution, Biology 101 - College Level

The definition of evolution is the study of genetic changes that make it possible for a species to survive over time. Although I am not inclined to believe the basis of evolution, being th ... in the survival of all living things.In the study of Taxonomy, we discover the fact that all living species have a classification that is based first and foremost on their original cells and then bran ... oduction of offspring. Without evolution, survival would be impossible. We can look at all sorts of species and see that their development or lack thereof points directly towards evolution as a means ...

(2 pages) 173 3 4.4 Mar/2003

Subjects: Science Essays > Biology

Extinction.

se it does not take into account the full threat posed by humans it does not reflect all threats to species. Researchers Alexander Harcourt and Sean Parks from the University of California have found ... Sean Parks from the University of California have found that after reassessing two hundred primate species from the 1996 "Red List" seventeen species which were said to be low risk should now be reas ...

(1 pages) 35 0 1.5 Nov/2003

Subjects: Humanities Essays > Health & Medicine > Diseases

"Investigating the distribution of streams invertebrates"

We the disturbed the area by turning the rocks and brushed then lightly into the net so that the species were washed in by the current;6) Then we put the species that were inside of the net ... 6) Then we put the species that were inside of the net into a white tray and identified the species and counted them;7) At each sample site we also measured:a) Temperature by p ...

(1 pages) 25 1 3.0 Nov/2003

Subjects: Science Essays > Biology

How animals adapt to environment they live in.

find food and water, which are often scarce. Yet, in spite of these extreme conditions, most animal species are represented in the desert environment, even some we typically associate with temperate o ... rally speaking, these types are not found in deserts. One exception is the brine shrimp, an ancient species that can live in desert salt lakes. Other exceptions are certain species of worms, leeches, ...

(19 pages) 96 0 3.2 Mar/2004

Subjects: Science Essays > Biology

The american crocodile

s natural habitat and human misconceptions have caused the decline of its population, thus making a species that has roamed the earth for thousands of years, endangered.This crocodile hunts for a livi ... ole body.The American Crocodile (crocodylus acutus) and the Chinese alligator exist as the only two species found outside the tropics. When the crocodiles hatch from their eggs, they can measure from ...

(4 pages) 26 0 3.8 Mar/2004

Subjects: Science Essays > Zoology

Alligators and Crocodiles: Comparison and Contrast

s.Alligators and crocodiles have many similarities. They are both carnivores found near water. Most species are about the same size except for the Saltwater Crocodile, which can be two-thousand pounds ... ears, and crocodiles mature in eleven years. Although similar in appearance, these are two distinct species.For alligators and crocodiles, the differences in appearance are all in the fine details of ...

(1 pages) 96 2 4.3 May/2004

Subjects: Science Essays > Biology

Essay on reproductive isolating mechanisms (1500 words)

Reproductive Isolating MechanismsIn the 1940s, Ernst Mayr coined the term Biological Species Concept that was subsequently widely embraced by the scientific community. The definition st ... cept that was subsequently widely embraced by the scientific community. The definition stated that "Species are groups of actually or potentially interbreeding natural populations that are reproductiv ... hat are reproductively isolated from other such groups". Certain mechanisms are in place to prevent species from interbreeding with others and these are referred to as reproductive isolating mechanism ...

(6 pages) 32 0 3.0 Sep/2004

Subjects: Science Essays > Genetics & Genome Projects

Cloning

any lives. Cloning could bring back extinct animals. Over millions of years, thousands of different species have gone extinct. Most were due to "natural selection", while several others were due to hu ... oduced by humans from continental areas are responsible for many of the extinctions. Many remaining species on oceanic islands are threatened or endangered." With cloning, many of the animal species, ...

(2 pages) 26 1 4.6 Apr/2005

Subjects: Science Essays

Animal Rights- Do Animals have the same rights as Humans

refore, aside from economic concerns such as making sure we don't kill so quickly that we destroy a species and deprive our descendants of prey, human animals can kill members of other animal species ... refore, aside from economic concerns such as making sure we don't kill so quickly that we destroy a species and deprive our descendants of prey, human animals can kill members of other animal species ...

(4 pages) 105 1 3.0 Apr/2005

Subjects: Social Science Essays > Controversial Issues > Animal Testing

Chapter 19: Speciation

19.1 On the Road To SpeciationSpecies means "kind," as in "a particular kind of duck."Through the history of any species, micro ev ... ils, perhaps we should move past the details, down to a more basic function that units members of a species and isolates them to all other species.Reproduction as a defining function in species is cen ... em to all other species.Reproduction as a defining function in species is central to the biological species concept."Species are groups of interbreeding natural populations that are reproductively iso ...

(6 pages) 47 0 1.0 May/2006

Subjects: Science Essays > Biology

Biodiversity

versity means a biological diversity in an environment as an indication by the numbers of different species of plants and animals. The preservations and the zoos have lots of comparison and contractio ... increase, then there is a possible consequence to the food web on the Serengeti, if any particular species, will disappear.The zoos and the preservations can be different or the same. The zoos take c ...

(2 pages) 59 0 0.0 Aug/2001

Subjects: Science Essays > Environmental Science

Endangered Species

In the geological past, many species have become extinct because of natural factors. Since it does not result from us, can we say ... tors. Since it does not result from us, can we say that it is unjustified for us to save endangered species spending lots of money and energy? Different people have different opinions. I maintain that ... different opinions. I maintain that we should look for a bit more balance between saving endangered species and developing our economics.Admittedly, due to the changes of inexorable nature, many speci ...

(2 pages) 26 0 5.0 Aug/2007

Subjects: Social Science Essays > Controversial Issues

Environmental protection

maginable - are bringing an end to the lives of creatures across the Earth.Extinction of biological species is not necessarily a phenomenon initiated by human activity, some argue. Although the specif ... n is still being researched and debated, it is generally accepted that the demise of any biological species is inevitable. Opponents of special efforts to protect endangered species invariably point t ...

(8 pages) 130 0 5.0 Feb/2008

Subjects: Science Essays > Environmental Science

Endangered Species

es as well as 20 percent of the plants are threatened. What more scary is 20 percent of the world's species would be gone in the next 30 years if the pollution rate keeps on like this. By that time, t ... land and amount of resources than ever. Take polar bears as example, which are a kind of endangered species. There are about 22,000 polar bears left on the land and about half of them are living in th ...

(4 pages) 27 0 1.0 Feb/2008

Subjects: Science Essays > Environmental Science

An essay on Australia's unique flora and fauna

ia's flora andfauna is found nowhere else in the world. Theestimated number of native and introducedspecies living in Australia Ð about one millionÐ is more than twice the number of species in ... ralia ischaracterised by drought-resistant qualities. TheAustralian land flora comprise over 12 000 speciesand many of these are endemic to Australia Ðthat is, they occur naturally in Australia an ...

(2 pages) 2524 0 0.0 Jul/2008

Subjects: Science Essays > Environmental Science

marketing report

IntroductionThe above article shows how Malaysian citizen do conservation on endangered species such as turtles. Prof Dr Saleem Mustafa as Borneo Marine Research Institute director comment ... hom face the busy lifestyle make them unaware of their surrounding and the extinction of endangered species such as sea turtles, whale, panda and many more. They neglect the existence of the endangere ... he existence of the endangered species and the effort in conserved them. As results the loss of one species can upset the balance of the environment and affect biodiversity which make a huge differenc ...

(2 pages) 0 0 0.0 Feb/2014

Subjects: Social Science Essays > Sociology