because they have have negligible mass
Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
Prokaryotic cells lack a nucleus.
Answer: false
Explanation: External threats are not intentional.
Companies face business risks every day, and those risks are part of every organisation which can be in form of
--- External threats (economic, social , political and Micro threats )are threats or risk that cannot be controlled by a company or predicted with a high level of reliability. Therefore, making it difficult to reduce the associated risks.
-And Internal threats are threats that happen inside the organisations which can be predicted with some reliability, and therefore, provide chances of reducing it.
They both can lead to lower revenue, profits, and financial loss.
One group of reptiles, characterized by the fossil Archaeopteryx, led to the evolution of birds. The correct answer is birds
