Answer:
Island finches did not have beaks of the same size and shape
Explanation:
This is the evidence of variation, and therefore proof that the finches were able to survive the selective pressure by adapting their beaks to different feeds. Therefore finches that were able to adapt adjusted their beak shapes to the selecting pressure 'feeds' in the environment, and are naturally selected, and therefore adapted and evolved with time .While those without the surviving beaks lost out.
Thus changes in selection pressure, necessitated corresponding change in the beaks shape for adaption to survive( due to variation, ) and therefore natural selection for evolution
Answer:
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos. Another important type of evidence that Darwin studied and that is still studied and used today is artificial selection, or breeding.
Explanation:
The lava has<span> cooled and is now a volcanic </span>rock<span> called basalt. ... These pieces of igneous </span>rocks<span> are cemented together with </span>other<span> bits of </span>rock<span> and ... Feldspar </span>can have<span> a glassy white, blue, green, or </span>red<span>crystals. ... Properties </span>help<span> scientists to better understand how the mineral was formed and also to </span>help identify<span> a mineral</span><span>.</span>