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ss7ja [257]
3 years ago
11

What can you conclude from the fact that more than a billion species have gone extinct during Earth's history?

Biology
1 answer:
MArishka [77]3 years ago
8 0
A. Extinction is a natural part of life on earth
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Since the Industrial Revolution, the global annual temperature has increased in total by a little more than 1 degree Celsius, or about 2 degrees Fahrenheit. Between 1880—the year that accurate recordkeeping began—and 1980, it rose on average by 0.07 degrees Celsius (0.13 degrees Fahrenheit) every 10 years. Since 1981, however, the rate of increase has more than doubled: For the last 40 years, we’ve seen the global annual temperature rise by 0.18 degrees Celsius, or 0.32 degrees Fahrenheit, per decade.

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Imagine that you are studying alien life-forms discovered on a distant planet. While geneticists are working out the genetic cod
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A phylogenetic tree based on morphology can be constructed using the presence or lack of characteristics. In this illustration, all aliens except the outgroup possess a spring tail, all aliens possess a fourth eye, two aliens possess two tails, and one alien has a grasping hand. The evolutionary relationships between these organisms can be hypothesized using these traits.

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  • Out group: a group that is maintained apart from the clade but is yet connected to it.
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