When nitrogen molecules that are found from lightnings dissolve in rain, forming nitrates, and are carried towards Earth, the plants can now use this as a source of energy for their photosynthetic capacity. The enormous amounts of energy produced by lightning enables the nitrogen molecules to combine with oxygen from the air forming nitrogen oxides that are water soluble and falls back to earth.
The process used to describe the process by which two separate species may evolve in a similar way is called Natural Evolution
Answer:
Africa
Explanation:
The earliest finding of modern Homo sapiens skeletons come from Africa. They date to nearly 200,000 years ago in the African Continent.
Current data suggest that modern humans evolved from archaic humans primarily in East Africa. A 195,000 year old fossil from the Omo 1 site in Ethiopia shows the beginnings of the skull changes that we associate with modern people, including a rounded skull case and possibly a projecting chin.
A 160,000 year old skull from the Herto site in the Middle Awash area of Ethiopia also seems to be at the early stages of this transition. It had the rounded skull case but retained the large brow ridges of archaic humans. Somewhat more advanced transitional forms have been found at Laetoli in Tanzania dating to about 120,000 years ago. By 115,000 years ago, early modern humans had expanded their range to South Africa and into Southwest Asia (Israel) shortly after 100,000 years ago. There is no reliable evidence of modern humans elsewhere in the Old World until 60,000-40,000 years ago, during a short temperate period in the midst of the last ice age
<span>The answer is 1/8. Let's separate two traits. We have two events occurring together so using multiplication rule we will multiply probabilities of those events. Event 1: the probability that the offspring will show Yy genotype. In the cross of parents Yy and Yy, one of four offspring will have YY genotype, two of four offspring will have Yy genotype, and one of four offspring will have yy genotype. Thus, the probability that the offspring will show Yy genotype is 2/4. Event 2: the probability that the offspring will show TT genotype. In the cross of parents Tt and Tt, one of four offspring will have TT genotype, two of four offspring will have Tt genotype, and one of four offspring will have tt genotype. Thus, the probability that the offspring will show TT genotype is 1/4. Hence, the probability that the offspring will show YyTT genotype is: 2/4 * 1/4 = 2/16 = 1/8.</span>