Answer:
Explanation: Human approach, attitudes and adherence to the safety skills does deal with the impact over environmental factors at a personal level. We have to be more careful and cautious while we pursue our own habits, and activities, with the aim of posing less harm to the environment in any way.
Answer:
The last one is the correct answer<em>( a mRNA strand is created using the code in DNA)</em>
Lowering the energy required
Enzymes are biological catalyst or chemical reactants that
can speed up rate of reaction between the substances without them being
affected by it. They play a vital role in bodily functions like digestion.
Enzymes and co-enzymes would often work together in order to create a
fermentation process in the body
The answer is; the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer
In Africa, due to its equatorial latitude location, receives direct sunlight at more or less 90 degrees most of the year. These highly concentrated rays increase the UV radiation exposure that can cause damage to cell DNA. Selection pressure, therefore, favored individuals with high melanin concentrations that protect against UV. Therefore population evolved towards high melanin densities in the skin.
Answer:
The differences in characteristics between individuals of the same species is called variation . Some variation is passed on from parents to offspring, via genes during reproduction. ... Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.
