Which of Darwin four postulates are simulated in generation 2? A. competition
B. genetic variation
C. survival and reproduction
D. overpopulation

B. genetic variation

Explanation:

We can see that in generation 2 one circle spilts into three differently colored circles! This represents how the gene pool is varying (genetic variation). Hope this helps! :)

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.

the fossil record provides evidence of a common ancestor to many species.