Natural selection effects on allele frequencies ( write in your OWN words)

natural selection cause a change in an allele frequencies over time, therefore this increases the likelihood that certain individuals with specific alleles will survive to a reproductive age, enabling them to pass in their alleles to their offspring.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.