biodiversity Essay

1. The pulmonary circuit is supplied by which ‘side” of the heart? The systemic circuit? The right atrium

Never has a communications system played so many roles in our lives--or exerted such broad influence over our thoughts--as the Internet does today.

Environmental scanning can be viewed as a way of acquiring information about outside events that can aid organizations in first identifying potential trends, then interpreting them

No one could have foresaw a drought occurring and even the most experienced farmers might have thought if a drought were to hit it would not last long. Worster states, “Over the nation as a whole, the 1930s drought was in the words of a Weather Bureau scientist, “the worst in the climatological history

The drought was brought on by changing climate in the mid-west; the drought during the Dust

This assured requirement forms an inherent dependency on interconnected networking which is known as internetworking.

What is the difference between a threatened species, an endangered species, and an extinct species?

The drought put upon the earth did not put an end to the racket for

‘Compare the nature and rate of change that affect the functioning of TWO different ecosystems at risk.’

A keystone species is a species that has a disproportionate effect on its environment relative to its abundance. Such an organism plays a role in its ecosystem that is analogous to the role of a keystone in an arch. While the keystone feels the least pressure of any of the stones in an arch, the arch still collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measures of biomass or productivity. It has become a very popular concept in conservation biology.

A biome, also known as life zones, consists of all plants, animals, and other organisms, as well the physical environment in a particular area. A biome is characterized by its’ plant life, climate, and location. The climate and physical features determine the boundaries of a biome. A biome is made up of many different ecosystems. The ecosystems tend to have the same pants and animals as neighboring biomes around the boundaries. The major biomes are the tundra, taiga, tropical rain forest, temperate forests, desert, grassland, savanna, chaparral, and marine. Each biome has it’s own characteristics such as the tundra.

There are 6.5 million species of land mammals. Wildlife biologists get the privilege of studying and spending time with these animals as their everyday life. I should be a wildlife biologist so I can study land mammals.

"What we call Man's power over Nature turns out to be a power exercised by some men over other men with Nature as its instrument."

Eukaryotes come in two grades of organization: single-celled (protists) and multicellular (plants, animals, and fungi). The world today is full of complex multicellular plants and animals: how, why, and when did they evolve from protists?

Franck and Brownstone define biological diversity as 'the variety and variability of living organisms and the biological communities in which they live' (36). Decades of progress in both the scientific and political arenas have advanced environmental legislation to protect biodiversity at not only the ecosystem level, but for specific species and genetic material as well. Research has shown the importance of every organism and their role in the global ecosystem, and legislation has gradually matured to protect not only species which may become endangered, but the habitats they need to survive as well. Growing consciousness surrounding environmental issues has enabled these protections to be