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Although vaccinations are very beneficial they do carry risk factors - they can cause mild swelling, soreness, a mild form of the disease (they are being vaccinated for), and rare major harmful reactions....
Embryonic stem cells are unspecialised or undifferentiated. This means they can divide to form any type of cell. Embryonic stem cells could be used in medicine to replace damaged cells. This could treat d...
Natural selection is all about the 'survival of the fittest' - the organisms which are best suited to their environment are most likely to survive and have offspring, leading to a change in allele frequen...
Increase in temperature:Sweat produced from sweat glands increases energy transfer away from the body when it evaporates.Vasodilation of blood vessels close to the surface of the skin, which increases ene...
Chloroplasts- green organelle that contains chlorophyll which absorbs sunlight needed for photosynthesis (LIKE A SOLAR PANEL)Cell wall- they have in addition to a cell me...
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