The graph shows the changes in the number of animal fauna's living on earth overtime in how the fauna's were affected by differe
nt extinction events which statement is correct about the changes in fauna's during one of these five major events
A) The event at the end of the Devonian resulted in the increase in the number of Cambrian fauna’s
B) The event at the end of the Cretaceous resulted in a increase in the number of Paleozoic fauna’s
C) The event at the end of the Triassic Resulted in the extinction of fewer fauna’s then in any other period
D) The event at the end of Cretaceous resulted in the Extinction of more fauna’s then in any other period
A) The event at the end of the Devonian resulted in the increase in the number of Cambrian fauna’s
B) The event at the end of the Cretaceous resulted in a increase in the number of Paleozoic fauna’s
C) The event at the end of the Triassic Resulted in the extinction of fewer fauna’s then in any other period
D) The event at the end of Cretaceous resulted in the Extinction of more fauna’s then in any other period
1 answer:
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→ Darwin believed that the need to adapt, in similar words, the changes occruing in the environment caused evolution.
The main cause of evolution, according to Darwin, was natural selection. Natural selection is a process in which a group of organisms with certain characteristics survive and thrive, in comparison to other organisms with different characteristics. This idea basically means that having some characteristics makes you suited for an environment.
And how would that ↑ explain Evolution?
Well, evolution is the change in species that occurs during time. But for you to change, there must be a cause for that change, which is none other than the need to survive, reproduce, etc.
→ As mentioned before, not all characteristics are enough to surive, and hopefully the image pasted below will help you.
Hope it helped,
BioTeacher101
