A Human Is A Complex Organism Human beings are complex and special organisms as there is a complex organisation of cells in the human body. The organisation in the human body is summarised as follows: Cells—> Tissues—> Organs—> Systems—> Organism.The same type of cells which carry out a specific function are organised into a tissue. For example‚ a group of nerve cells form a nerve tissue. They are organised to work together to perform specific functions as the result of cells in the human body
Premium Organism Water Density
How bacteria can affect the lives of humans and other organisms Bacteria can enter the body in 3 different ways. Through the gas exchange system‚ by breathing in pathogens‚ most are trapped in the mucus lining in the lung epithelium. There are also cilia that move the mucus up the trachea and into the mouth where it is removed. However some bacteria is still able to reach the alveoli where they invade cells and cause damage. Another way it can enter the body is through the skin‚ if the skin is
Premium Bacteria
The Human Being—A Complex Organism Human beings are complex and special organisms as there is a complex organisation of cells in the human body. The organisation in the human body is summarised as follows: Cells—> Tissues—> Organs—> Systems—> Organism. The same type of cells which carry out a specific function are organised into a tissue. For examples‚ a group of muscle cells form a muscle tissue while a group of nerve cells form a nerve tissue. They are organised to work together to perform
Premium Organism Muscle Cell
Ways in which living organisms differ from each other There are many ways in which living organisms differ from each other. In this essay I will discuss the various ways of which this occurs. There are two different types of cells‚ there are prokaryotes and eukaryotes. Within eukaryotes there are different structures and similar structures. For example; in a plant cell they have a nucleus‚ mitochondria an ER‚ and a Golgi body. These are the same as animal cells; however they differ because plants
Premium Cell DNA Gene
A planarian is free-living flatworm that lives in fresh water. Planarians are organisms that live in freshwater. Planarians are part of the metazoan phylum. Animals in the metazoan like jellyfish have the ability to regenerate (Raymond 511-512). Planarians are closely related to animals like jellyfish and starfish. These animals shared the same special ability to regenerate; starfish are able to regenerate their arm when it is cut off. Jellyfish are able to regenerate their stinger when cut off (Li
Premium
All organisms must have adaptations to survive. The adaptations that organisms develop help them to survive in their environments and then are passed down through reproduction. The genes are passed to future generations and adaptations continue to occur over long periods of time. Nature Works tells us‚” animals that are better adapted to their environment survive and breed. Animals that are not well adapted to an environment may not survive.” There are three types of adaptations that can occur: morphological
Premium Natural selection Evolution Biology
PROS Animals belong in their natural It will be sad for the animals to be lock down in cages and zookeepers abusing them and not growing in there natural habitat habitat in the wild. It is a breach of their natural rights to take them by force into captivity for our own purposes. Aquatic animals do not have enough water‚ birds are prevented from flying away by having their wings clipped and being kept in aviaries captivity for our own purposes. Who are you to say that animals do not have rights
Free Human Natural environment Thought
Why are Living Organism so Diverse ? Regardless of world’s life diversity‚ we all‚ from the ant to the whale and us humans have DNA linkage‚ which gives us the evidence for one common ancestor. The question that comes up now is how from this very primitive common ancestor did we all end up so diverse. Biologist have dedicated they life to answer this question‚ Through this essay I shall show how through different aspects life has become so diverse. Timescale Life as not evolve suddenly from its
Premium Evolution Species Natural selection
Marine organisms and other novel natural sources of new cancer drugs Gilberto Schwartsmann South-American Office for Anticancer Drug Development (SOAD)‚ Comprehensive Cancer Centre (CINCAN)‚ The Lutheran University (ULBRA) & Postgraduate Course in Medicine (UFRGS)‚ Porto Alegre‚ Brazil Introduction Man has always relied on nature for survival. Since ancient times‚ nature has been our main source of food‚ protection‚ clothing‚ transportation and remedies [1‚2]. This can be illustrated by the
Premium Cancer Oncology
Here we have some highlights of how the natural selection works and some of the evolutionary forces that drive evolution: The natural selection operates in base of the difference between de reproductive successes of the individuals. The genes of the most successful individuals (the ones that reproduces more) appears more in the next generation. If an individual cannot survive it will not be able to reproduce. Because of that natural selection is NOT RANDOM and can act really quickly. (Charlat et
Premium Evolution Natural selection Charles Darwin