I believe the correct answer is A) Silurian period occurred before the Neogene era, because the other answer are wrong.
Hadean eon ended before Silurian period.
Mesozoic and Permian era were after Silurian period.
A disturbance that happens repeatedly, as part of a cycle such as the classical economic cycle of boom, bust, revoery, boom, bust, recovery is your answer
Given what we know, we can confirm that the statement in the question is in fact true, by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram.
<h3>What else do we know about the
embryo in this time frame?</h3>
During the first eight weeks, the embryo undergoes many changes. At this time:
- The legs and arms have formed.
- The fingers and toes are beginning to develop.
- It begins to be called a fetus.
- It is developing the lungs and lymphatic system.
- and much more.
Therefore, we can confirm that the statement that by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram, is in fact true.
To learn more about embryology visit:
brainly.com/question/1255159?referrer=searchResults
If the mutation is beneficial, the mutated organism survives to reproduce, and the mutation gets passed on to its offspring. In this way, natural selection guides the evolutionary process to incorporate only the good mutations into the species, and expunge the bad mutations.
I believe that the most contaminated are is the kitchen sink. Researchers say that the sink can contain up to 100,000 times more bacteria than the toilet seat. This is because the sink is where everything is slopped in.The sink should be washed with hot water and disinfected regularly to kill the harmful bacteria.