of living and extinct organisms | Living things and the | environment | Ecology | Relationships between living organisms and their environment and how they interact with both living and non-living components in the environment | Biogeography | Geographical distribution of organisms | Structures and functions | of living organisms | Cytology | Structure and functions of cells | Anatomy | Internal structure and organisation of living organisms | Biochemistry | Chemistry
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and the application to real life situations. Concept of Habituation The concept of habituation begins with the understanding of the orienting response or orienting reaction. The orienting response or investigatory reflex is the reaction an organism has to any stimulus for the purpose of identifying the source of it and
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I HOLD THE FUTURE: PRESERVING THE PHILIPPINES BIODIVERSITY The sum of all the different species of animals‚ plants‚ fungi‚ and microbial organisms living on Earth and the variety of habitats in which they live is called Biological Diversity or also known as the Biodiversity. Scientists estimate that upwards of 10 million—and some suggest more than 100 million—different species inhabit the Earth. Each species is adapted to its unique niche in the environment‚ from the peaks of mountains to the depths
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DNA is the “blueprint” for the individuality of an organism. The organism relies upon the information stored in its DNA for the management of every biochemical process. The life‚ growth and unique features of the organism depend on its “blueprint”. The parts of DNA which have been linked with specific features or functions of an organism are called genes. Molecular biologists have discovered many enzymes which change this structure in living organisms. Some of these enzymes can cut and join strands
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Natural Selection Paper Natural selection is considered one of the most important processes for a variety of species and the environment which allows the fittest organisms to produce offspring. To prevent a species from extinction‚ it is necessary for them to adapt to the surrounding environment. The species which have the ability to adapt to new surroundings will be able to pass their genes through reproduction. Within the process of natural selection‚ it is possible for the original genetic make-up
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Ubiquity of Microbes Bacteria are the most widely distributed organisms in the biosphere. They are found in all different types of soil‚ water and even in the bodies of other living organisms. Every single place that humans have explored on the Earth‚ have shown to contain microbes. Bacteria are living organisms and like all living organisms‚ they require energy and carbon sources in order to metabolize and reproduce. And like all living organisms they respond to changes in their environment. Ubiquity
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and many more. They are found in adult bone marrow‚ embryos‚ fetuses‚ and blood from the umbilical cord (Bailey 100). Stem cell research is the latest advancement in biotechnology which shows how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. This technique has lead scientists to research about the possibility of cell-based therapies to treat disease‚ which is often referred to as regenerative or reparative medicine. The stem cell formation
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spread by a meteorite to the Earth where it found an environment that allowed it to thrive and evolve into what it is today. Another theory is that heterotrophs were the first living organisms on the planet. “According to the heterotrophic hypothesis the first living beings were very simple heterotrophic organisms‚ i.e.‚ not producers of their own food‚ which emerged from the gradual association of organic molecules into small organized structures (the
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radio‚ thought that this was very strange. In the past‚ they had thought about there being a time when strange organisms from outer space would come to Earth‚ and try to take over. They decided that they would design a building that could be used to research the different things that they might come across in the future. This building would have to be very sterile so that the organisms couldn’t contaminate anything and destroy the Earth. The building was five stories high and each level was more
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By examining where and when genes are expressed in a cell or organism‚ one can acquire valuable hints to its function‚ for genes compile the genetic make-up of an organism and exploring the function of genes is helping to uncover the complexity of ourselves and of other forms of life (1). Significant developments have been made in gene monitoring techniques specifically in DNA microarrays which only very recently revolutionized genome expression analysis (1). Despite continuous improvements and
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