Reactive oxygen species

Suash Deb in 2009. It was inspired by the obligate brood parasitism of some cuckoo species by laying their eggs in the nests of other host birds (of other species). Some host birds can engage direct conflict with the intruding cuckoos. For example, if a host bird discovers the eggs are not their own, it will either throw these alien eggs away or simply abandon its nest and build a new nest elsewhere. Some cuckoo species such as the New World brood-parasitic Tapera have evolved in such a way that…

Kaylee Kiewit What is Geography? Why do we study it? Mrs. Bezy/ English 9 Honors/ Period 5 8/11/17 Geography is “the study of the physical features of the Earth and its atmosphere” as well as the activity of humans since we greatly impact the Earth around us. Themes of geography include location, place, region, movement, and human/environment interaction. We study geography so that we can better learn about the world we live in. The first theme of geography that I’m going to talk about is…

Being products of evolution, nearly all living things are, in essence, products of their environment. The environment influences which traits are successful and get passed on. Before long, those organisms are directly products of their environment. This phenomenon chiefly occurs when the environment holds all the power over the organism. When it comes to humans, however, we are social animals, we influence and are influenced by those around us. Because of this, humans are not solely products of…

Tanzania on the Great Serengeti. The findings by Tony Sinclair were named the Serengeti Rules after extensive research in the Serengeti National Park. A couple main rules are available for specie interaction: different species compete for similar or the same resources, the body size of species affects the way populations…

Hypothesis originates from Elton’s conviction involving the heavy invasion of species imperfect systems. Biological Invasions, specifically invasive species are exotic species that cause environmental…

The Difference in Frogs Humans are all under the same general specification of Homo sapiens, but they are all different from height all the way to thoughts. The same goes for any other types of species with the same universal name. Each are disparate like frogs for example. The term frog is a synonym to its more specific name: Amphibians. Both of these names are umbrella terms for these animals. Yet, there are many different varieties of frogs such as the Turtle Frog and the Clawed Frog.…

capacity of suffering and enjoyment, or in other words, sentience. Throughout this chapter, Singer makes his readers see that if one rejects racism and sexism, one must also reject the idea of giving special consideration to the interests of one species over another one. In this essay, I will firstly reconstruct the arguments used by Singer to arrive at the conclusion that all animals are equal. Secondly, I will evaluate the justifications that he uses to arrive at such claim. Finally, I will…

Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. “Some insects, fishes, amphibians, mollusks, crustaceans, cnidarians, echinoderms and tunicates undergo metamorphosis, which is usually accompanied by a change of habitat or behavior”. (http://en.wikipedia.org/wiki). But this change has been incorporated to human’s life…

A LIVING HAZARD: BRACKEN FERN [Pteridium aquilinum (L.)Kuhn] INTRODUCTION With their large, shiny green and highly dissected leaves, ferns are so visually appealing and many of them are sold as ornamentals. But certain fern species can create substantial problems and they are herein called “problem ferns”. Pteridium aquilinum (bracken fern) is one of the problem ferns which cause the greatest range of problems on ecology and human welfare. Bracken fern has been described as one of the five…

between trait and fitness, in which the trait contributes to the organism’s fitness by enhancing its chances of surviving or reproducing. A trait can both increase or decrease fitness depending on the environment. A trait might be adaptive for a species if it increases the fitness of the organisms since natural selection favours the best adapted forms. In this particular experiment, if the alternative hypothesis is justified, the increasing in the size of the lids in N. gracilis is a trait that…