Rocks,water,pebbles = Abiotic
Fish =Biotic
Ophthalmology is the specialty dealing with disorders and injuries of the eye... And ophthalmologist is the specialist responsible. Do not confuse with a optometrist. An optometrist only does basic diagnosis and fitting for eye ware.
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Improving drainage in the cities by ensuring that drainage channels are large enough to handle floodwaters and that they are never blocked. Clogged drainage's impede the flow of water resulting in a rise in water levels in the city. Ensure proper enforcement of laws that ensure that people do not settle on wetlands and riparian land. Wetlands are natural drainage's for water and settling on them is akin to blocking drainage's in a built environment. Constructing flood gates and flood walls to redirect floodwaters away from populated areas. This is especially implemented in built environments that are in low-lying lands and prone to flooding.
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discovery in 2008 where researchers found the ACTN3 gene known as the super sprinter gene that controls fast twitch muscle fibers in sprinters. this gene is apparent in a lot of sprinters, and we know it is a mutation because about 18% of people today actually have 2 defective ones, thus not having the ACTN3 gene at all.
There's this other famous one where this gene low-density lipoprotein receptor-related protein 5, or LRP5 causes extra bone density. usually when LRP5 is inhibited or impaired, this causes osteoporosis, but when it is mutated a different way, it can cause increased bone density. a bunch of generations of a family had never broken a bone in their life because of this. cool stuff.
There's also this trait originating from Africa that people with the sickle cell anemia, no matter if it is active or not, have some resistance towards malaria, good mutataion.
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they open up to get the energy from the sun.
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