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Simply mutation and natural selection against the backdrop of the immediate environment.

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Q: How do modern scientists explain the appearance of new traits within a species?
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What knowledge did Darwin lack that modern scientists now use to explain evolution?

Modern scientists now use genetics to help explain the theory of natural selections.


What knowledge that modern scientists now use to explain how variation occurs did Darwin's lack?

The ability to read, modify, and transform DNA is what past scientists did not have. Genetic engineering is another factor that Darwin could not explain. These are all modern scientific breakthroughs with that help of modern technology that Darwin lacked.


How do modern scientists explain the changes within species that can lead to evolution?

Evolution is a slow, slow process which enacts itself over many generations. Species evolve to adapt to environments and to survive, which makes evolution the mechanism through which "survival of the fittest" succeeds as a natural order.


Do modern scientists believe in the theory of plate tectonic?

Yes. Plate tectonics is part of the current principal theory that seems to explain the formation of geologic faults, rifts, earthquakes, sea floor spreading, and even some diversification of species, among other phenomena.


Explain why not all hominids are the ancestors of modern humans?

Scientists say that hominids diverged into two different creatures over time: Apes and humans


How can scientists predict what the species looked like if its skin have decomposed?

There is no exact way to tell. But scientists can make a good guess. Calculating the overall size and muscle mass of the species will give them an approximate idea on how the skin would stretch over their bodies. As for color, there is only basing the ancestral color off of a more modern version of the species.


What knowledge that scientist now use to explain how variation occurs did Darwin lack?

The ability to read, modify, and transform DNA is what past scientists did not have. Genetic engineering is another factor that Darwin could not explain. These are all modern scientific breakthroughs with that help of modern technology that Darwin lacked.


What does Homo Habilis mean as in what scientists called the first humans?

Homo habilis means "handy man" in Latin, reflecting the species' ability to use tools. Scientists consider Homo habilis as one of the earliest members of the Homo genus, distinguished by their primitive stone tool-making abilities.


Why would some scientists say a dinosaur maybe the ancestor of birds?

Comparative anatomy of certain species of dinosaurs, early birds, and modern birds show they are related.


What is the name of the modern human species?

Homo-Sapien, there isn't a modern form of our species.


How do modern scientists describe the make up of matter?

how do modern scientists describe the makeup of matter


Are megalodan being kept alive by scientists?

Megaladon or Carcharodon megaladon is an extinct species of shark identified though fossil teeth and vertebrae that lived 25 to 1.5 million years ago. Estimates suggest it was a 67 ft shark similar in appearance to the 20 ft modern day Great White or Carcharodon carcharias. There are no megaldon's alive today.