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Biology One By Applequestria (applequestria.deviantart.com)



Diet and exercise:
A healthy diet consists of the right amount of different foods and the right amount of energy. Being
malnourished means your diet isn't balanced, and can lead to a being overweight or underweight. An
unbalanced diet can also lead to deficiency…

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1. Antibiotics are only used to treat serious infections.
2. An antibiotics course has to be completely finished.

In research made to investigate the action of disinfectants and antibiotics, uncontaminated cultures of
microorganisms are required. To do this, the Petri dishes and culture media must be sterilised to kill…

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Now you need to know about the menstrual cycle. Firstly, a hormone called FSH is secreted by the pituitary
gland which causes the development and maturation of the eggs in the ovaries. This also stimulates oestrogen
to be secreted by the ovaries which inhibits further production of FSH. This…

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However, the overall impact of legal drugs on health is much greater than illegal drugs because much more
people use them.

Some athletes use drugs to enhance performance. Even though all drug use in to gain an advantage in sport is
banned, some people still use them to boost…

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Waste material
Decay processes
Organisms have to remove and use materials from the environment or growth and other purposes. These
materials are eventually returned back to the environment in either the form of waste materials or when
organisms die. Both of these materials are decayed by microorganisms. This means…

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1. Tissue culture - using a small group of cells taking from a part of the plant.
2. Embryo transplants - taking cells from an animal embryo, before transplanting them into host mothers.
3. Adult cell cloning - this is often asked for in exams because it is the…

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