Extinction of dinosaurs essay

A phenotypic characteristic, acquired during growth and development, that is not genetically based and therefore cannot be passed on to the next generation for example, the large muscles of a weightlifter. Any heritable characteristic of an organism that improves its ability to survive and reproduce in its environment.

Extinction of dinosaurs essay

Extinction of dinosaurs essay

Here is what Hippo stands for: There are many reasons animals become extinct. One of the most common reason is loss of habitat. The Earth constantly changes, but human activity is having a devastating effect on animals by destroying many of the places animals live, like the rain forests.

In some cases animals become extinct because the food they depend on becomes extinct causing the animals to die of starvation.

Animals in Danger of Extinction – The Causes

This is called co-extinction. There are many examples of co-extinction, but the most common is that of the dinosaurs. When the climate of the Earth changed very suddenly many of the plants died, which resulted in the loss of herbivorous plant eating dinosaurs. With the loss of herbivores came the extinction of the carnivorous meat eating dinosaurs.

This is an example of co-extinction but it is also one of the five known mass-extinctions. An invasive species is a type of plant, animal, insect or disease that moves into a new area, where it has not lived before, and over takes other living things.

When the existing habitat is disturbed there can be an opportunity for an invasive weed to move in and kill the remaining grassland. An animal could be pushed into a new habitat and kill the native animals.

The non-native animal might even carry a disease that the native animals have never been exposed to or have any immunity to, and die as a result. Exposure to toxic pollution is another cause of extinction. Human activity is releasing harmful chemicals into the air, water and soil all over the planet.

For example, some chemicals change the pH balance in water which changes the whole ecosystem of a river or a lake, killing off plants, fish and reptiles. The human population explosion is having devastating effects on the whole planet. Habitat is being reduced as humans consume more natural lands and more resources, like water.

Even more land is being tilled into crops to grow grains for human and domestic livestock. In addition, humans are creating mass amounts of waste that is contaminating the entire Earth. Overharvesting is still another reason animal species are becoming extinct. Ocean fishing is threatening many species of fish.

Another form of hunting involves the taking of animals for their beautiful hides, horns or in the case of the elephantstheir ivory tusks. There has been tighter restrictions put on legal hunting but many animals are illegally hunted.

This is called poaching and it has very strict penalties.Many of the imaginative theories for the extinction of the dinosaurs will also be presented. Within the uniformitarian paradigm, the meteorite impact theory, once considered ‘outrageous’, now is the dominant theory.

Essay on The Role of Fungus in the Extinction of Dinosaurs - The Role of Fungus in the Extinction of Dinosaurs The debate over what ultimately killed off the dinosaurs is an area of great interest to not only scientists, but everyone. Extinction of Dinosaurs Essay Extinction of Dinosaurs Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth.

Dinosaurs were a very successful and diverse group, dominating the terrestrial .

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Extinction of Dinosaurs Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth.

Dinosaurs were a very successful and diverse group, dominating the terrestrial environments of the earth for million years. Transformers: Age of Extinction is a American science fiction action film based on the Transformers toy line.

Extinction of dinosaurs essay

It is the fourth installment of the live-action Transformers film series and a stand-alone sequel to 's Dark of the Moon, taking place five years after its urbanagricultureinitiative.com its predecessors, it was directed by Michael Bay and written by Ehren Kruger, with Steven Spielberg and Bay.

Holocene extinction - Wikipedia