I think it's environmental and genetic.
No, the process of speciation occurs over many generations through evolutionary changes in a population. It is not a sudden event resulting from the mating of two individuals from different species. Speciation involves gradual divergence in traits and genetic makeup that eventually lead to the formation of a new species.
No, stars appear the same regardless of the country you are in. The appearance of stars is determined by factors such as the atmosphere and light pollution, but these factors are not specific to any one country.
Technically, there could be thousands of answers, as two animals can have the exact same hierarchy except for the species. There can not necessarily be two "closest related species". There are, however, instances where animals of the same species have made different adaptations. Such as in one type of hummingbird living in South America, the female has a longer, more curved beak than that of the male because they feed on different flowers.
Yes, banding patterns can resemble one another, especially among closely related species or individuals within the same population. Similar environmental factors, genetic backgrounds, or evolutionary processes can lead to convergent banding patterns. Additionally, certain patterns may appear similar due to shared traits or adaptations, even if they originate from different lineages. Careful analysis is often required to distinguish between these similarities and to understand their underlying causes.
"Devolution" is a misunderstanding. Species evolve over time, as mutations appear and spread and individuals reproduce and die. Evolution tends to produce species that are fairly well adapted to their environment, but they cannot be said to be "better" than any other species. "Devolution" is the idea that species may somehow regress or become more primitive, but any such change is simply another example of regular evolution. Evolution is not graded, so one species cannot be said to be more evolved than another.
They can be formed by evolution: A species can't survive in it's environment so it evolves into a more adapted species Two different species can mate: A new species can appear from the offspring of two different species.
New genes appear in individuals by random mutation.
No, the process of speciation occurs over many generations through evolutionary changes in a population. It is not a sudden event resulting from the mating of two individuals from different species. Speciation involves gradual divergence in traits and genetic makeup that eventually lead to the formation of a new species.
Members of the same species can appear somewhat different due to genetic variations, environmental influences, and adaptations to different habitats or lifestyles. Genes play a role in determining physical characteristics, while factors like diet, climate, and social interactions can also contribute to differences in appearance among individuals of the same species.
In monomorphic species, male and female appear quite similar. In dimorphic species, the males appear quite different from the females. (Life, the science of biology, 7th edition, chapter 23)
they appear because they are extinct
If one wishes to appear online in MSN one has the option to choose who has the ability to see that one is online. There are drop down menus that allow one to appear online or appear offline to different individuals on one's contact list.
There are several species of penguins. A different number of chromosomes can appear in each species. Studied species so far show penguins to have between 30 and 80. Emperor and rockhopper penguins both have 38 chromosomes.
The answer to this will vary with different individuals. Some would and others wouldn't. It depends on many factors, including individual beliefs and personalities. It might even depend on how much a person would be paid. Personally, I wouldn't.
Time dilation is caused by the theory of relativity, which states that time is not constant and can be affected by factors such as gravity and velocity. In different reference frames, time dilation can cause time to appear to pass at different rates. For example, time will appear to move slower for an object in motion compared to an object at rest. This means that individuals in different reference frames may perceive time differently based on their relative speeds and gravitational fields.
There are so many species of fish and they all differ. There are some in which there appear to be no differences and others that are so different they look like different species. If you define the species then I may be able to tell you how to sex them.
No, the appearance of the moon is consistent worldwide. However, factors such as atmospheric conditions and the moon's position in the sky can make it appear slightly different from various locations.