Answer:
DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism’s DNA that create diversity within a population by introducing new alleles.
<span>C. needed in small amounts.
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Minerals are also needed for the body although this should be taken in a very controlled amounts only.
Minerals and vitamins combined form the micro-nutrients of the body.
With micronutrients, only relatively little amount of nutrients is required to improve health. They are usually in milligram and microgram amounts and are enough to sustain to the metabolism and growth supplication. On the other hand, macronutrients are those that need large portions and quantities such as carbohydrates, fats and proteins. We need more of these to be converted to energy for movement and muscle growth. </span>
Answer:
biotic: preditors, soil bacteria content, plant life, algae
abiotic: temp, soil pH, wind, water
biotic menas alive abiotic means not alive
Compound light microscope and a transmission electron microscope share some similarities, these include:
1. Both of them are used for observing microscopic substances which can not be observed with naked eyes.
2. Specimens preparation prior to use is necessary when using both microscope.
3. Both are used in research work and analysis
4. Both can be used for microphotography.
