Biology · Introduction to Biology
Anatomy is that branch of biology that studies the structures and positioning of parts of an organism and the whole organism. it is interested in just how the structures are and has nothing to do with the functioning.
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Mathematics · Arithmetic processes
Approximations in mathematics is simply the idea or concept of taking the closest number to a given real value. For example, 2,100 is approximately 2,000.
This is sometimes helpful in writing the numbers in a more comprehensive (in the case of whole numbers) or shorter (in the case of decimals) way.
Approximations are done by "rounding off" certain numbers according to precise rules. Rounding off could either be rounding down or rounding up.
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Biology · Coordination
This is a condition where a person sees blurry because of poor refraction of light at either the conea or lens or poor curvature at the retina.
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Biology · Introduction to Biology
This is the branch of Biology that studies the chemicals and chemical reactions that take place in living organisms.
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Biology · Introduction to biology
Biology is the study of living things. Biology originates from two greek words "Bios" which means life and "logos" which means study. Hence, biology can also be etymologically defined as "the study of life". For this reason, biology is interested in everything that possesses the characteristics of living things.
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Biology · Introduction to biology
Botany is that branch of Biology that studies plants only.
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Biology · Biomolecules
These are organic molecules made up of carbon hydrogen and oxygen only in the ratio 1:2:1 via the formula (CH2O)n where n must be a whole number greater than or equal to 3.
We can thence conclude that the simplest sugar or carbohydrate is a 3-carbon sugar (triglyceraldehyde).
Sugars can be classified according the number of subunits they have into monosaccharides, disaccharides, oligosaccharides and polysaccharides. They can also be classified according to the type of carbonyl group they carry: aldosugars and ketosugars
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Biology · Cytology
A cell is the basic structural and functional unit of life containing genetic material and organelles with specific functions and enclosed in a cell membrane.
Basic structural unit implies that every organism, no matter how big or small is composed of cells. Every human or even the 'giant' elephant to the smallest ant is actually comprised of cells.
Basic functional implies all life functions or characteristics observed in larger organisms are mirrored by or from a cell.
Cells can be classified into either plant or animal cells as well as either prokaryotic or eukaryotic cells. Check out out notes on cytology for more details.
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Biology · Cytology
A cell type is a distinct morphological or functional form of a cell. Some cell types are progenitors of other cells. Such are generally termed as pluripotent. However other cell types may just mature into a specific form. A cell type can however change into another type. This is referred to as cell differentiation.
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Biology · Cytology
This is a situation where a cell type develops certains features and parts that make it more specific to a particular structure and function from it's preceding form.
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Chemistry · Introduction to Chemistry
Chemistry is the study of the composition, structure, nature and reaction that exist within and between matter. It is therefore a nature science.
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Biology · Genetics
Chromosomes are thred-like structure found in the nucleus of cells and are made up of protein and a DNA molecule. Chromosomes are actually DNA molecules that have coiled up to form a denser structure. A chromosome is observed to have two "fingers" called sister chromatids, attached to each other at the centromere.
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Biology · Introduction to biology, Cytology
This is the branch of biology that studies the cell.
It is interested in the origin, life and nature of the cell. It sees the cell as the most basic form of life.
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Biology · Cytology
The cytosol is an aqueous component of a cell cytoplasm within which the cell organelles and particles are suspended.
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Biology · Biomolecules
These are sugars made by the combination of two other carbohydrate subunits (monomers). There are three most common of them: maltose which is a combination of two glucose molecules, sucrose and lactose.
These sugars are linked by 1-4 glycosidic bonds. So, simply put, disaccharides are combinations of monosaccharides.
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Biology · Introduction to biology
Ecology is the branch of Biology that studies all living organisms in relation to their environment.
Ecology can thence be seen as the branch of biology that unites the studies made in biology. It also has a direct link with geography.
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Biology · Endocrinology
Endocrinology is that branch of biology that is concerned with the structure, disposition and functioning of endocrine cells and glands. Endocrine glands are those glands that are produce hormones in a living organism. These hormones are poured directly into blood without passing through ducts.
On an etymological percepective, endocrinology will be the science (logy) of endocrine tissues and cells.
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Economics · University studies
These are Derivatives which obtain their value from the financial value of and underlying asset
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Biology · Genetics
Genetics is the study of heredity and variation. It is therefore interested in what is inherited and how it's inherited. It also studies the differences observed between offspring of the same species.
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Geography · Introduction to Geography
Geography is the study of the earth and it's features, the distribution of life on earth it's relationship with man.
Etymologically, geography can be seen as "geo" for earth and "graphy" for mapping. It is this the study of how life 'shapes' the earth.
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