Answer:
The answer is D
Explanation:
I did a project on this. :)
Answer:
On average, developing countries have an infant mortality rate that is 18 times higher than the rate of developed countries. ... The most developed countries have an infant mortality rate of less than 1%, while the least developed countries have an average infant mortality rate of around 10%.
<span>And igneous rock sample is about 250,000 years old. Would you use uranium-lead radiometric dating to find its age?
Yes, wikipedia says "</span><span>It can be used to </span>date<span> rocks that formed and crystallised from about 1 million years to over 4.5 billion years ago with routine precisions in the 0.1–1 percent range.</span>"
Therefore, 250,000 years can be compared
Answer:
<u>Natural selection leads to evolutionary change </u>
Explanation:
- Natural selection is a process by which the species adapt to their environment. Thus individuals have a better chance of survival and evolution and transfer their traits to offsprings.
- As the process of evolution cannot take place without genetic mutation or diversification of genetic buildup. The occurrence of repeatedly branching events take place in which new species splits from a common ancestor producing a multi-level tree.
- For example, in the event of climate change, those species capable of tolerating the temperature will not die as compared to those which are not capable of tolerating and thus will not reproduce.
- If the same process is repeated over millions of years of the time the population will get adapted to their new climate and develop genes that combat these drastic changes.