1. Biologists in Darwin's time had already begun to understand that living things change over time. How did Darwin contribute to these ideas?
A. He found many fossils that showed that these changes could not possibly happen on islands.
B. He figured out and explained how these changes happened and supported his ideas with evidence.
C. He made guesses about how these changes happened, and wrote experiments that could be used to test these guesses.
D. He was the first person to truly believe that these changes happened, and he worked very hard to convince others.
its b my man
Thank you. It was right
Yep. B.
yay np
i may be back for unit 1 test.
yeah
i already did this so it was pretty easy to figure out. good luck with your science man
thank
The correct answer is B. Charles Darwin contributed to these ideas by figuring out and explaining how changes in living things happen over time. He supported his ideas with evidence, which he gathered from his observations and research.
Darwin's most significant contribution to our understanding of how living things change is his theory of evolution by natural selection. He proposed that species change over time due to the process of natural selection, in which individuals with advantageous traits are more likely to survive and reproduce, passing on their traits to future generations. This leads to the gradual change and adaptation of species to their environments.
To support his theory, Darwin collected a vast amount of evidence from various sources. One of the most critical pieces of evidence he gathered was from his observations during his voyage on the HMS Beagle. Darwin visited various islands and observed distinct species that seemed to be closely related but adapted to their specific environments. This observation led him to hypothesize that the species could have evolved from a common ancestor and subsequently diverged due to natural selection.
In addition to observations, Darwin collected evidence from various other fields, such as geology and paleontology. He studied fossils and found that they displayed a sequence of increasingly complex forms over time, suggesting that species had changed gradually throughout history.
Furthermore, Darwin conducted extensive experiments and collected data to support his ideas. He performed experiments with plants and animals, such as breeding different varieties of pigeons to demonstrate how artificial selection can lead to significant changes in populations.
Darwin's contributions laid the foundation for modern evolutionary biology and greatly shaped our understanding of how living things change over time.