Biology

Biology, 21.10.2019 20:40, madisonelizibet1

Which environmental lesson can you derive from the ecocide hypothesis for what happened to easter island?
a. the introduction of nonnative species has environmental consequences.
b. the over exploitation of resources has serious environmental consequences.
c. scientists do not necessarily agree on the interpretation of data.
d. climate changes have environmental consequences for all inhabitants of an environment.

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History, 25.07.2019 13:30, tiwaribianca475

Read this excerpt from a passage about easter island, an island in the south pacific that once supported a complex civilization. which type of evidence would support the author's thesis? historians and scientists agree that the landscape of easter island was much different when the first islanders arrived from polynesia in 800. the island was covered in lush forests of palm trees and was inhabited by large populations of birds. less than 600 years later, the island was a barren wasteland of grasses. the ecosystem on easter island collapsed as a result of the reckless use of natural resources by islanders, destroying the island civilization and making the island a challenging environment to live in. a.) a journal written by one of the civilization's chiefs describing how trees on the island died out after people cut down too many for wood b.) photographs of the many grasslands that cover easter island today c.) several articles written by different historians describing how people from polynesia first journeyed to easter island by boat more than 1,000 years ago d.) interviews with people currently living on the island who enjoy bird-watching

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History, 23.08.2019 18:30, Garrell

Read this excerpt from a passage about easter island, an island in the south pacific that once supported a complex civilization, easter island lies in the southern pacific, and because of the antarctic winds, it has a cooler climate compared with its tropical polynesian neighbors. today, much of the island is a nature park, and its towns thrive on tourists who come to see the ancient carved moai. not too long ago, however, the island was nearly uninhabitable. though civilization on easter island survived, infertile soil and a raging rat population brought about a natural collapse of the island's ecosystem. which type of evidence would support the author's claim?

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Biology, 10.09.2019 04:30, rmusungu4

Plz ! read the passage "easter island palm." choose the answer below that best fits the problem on easter island. in the 1400s, the easter island palm became extinct due to overharvesting. reproduction was nearly impossible because islanders introduced rats when they first arrived. these rats ate the easter island palm seeds, preventing the easter island palm from flourishing. with the disappearance of the palm, the islanders could no longer build the boats they needed for fishing. a.the erosion of topsoil, leading to decreased crop production b.the loss of pollinating birds to the island, resulting in a decrease in the variety of plant life on the island c.an increase in the islanders' consumption of land and migratory birds, resulting in a decrease in the bird population d.a decrease in the temperature, leading to decreased biodiversity

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Biology, 08.10.2019 17:20, danielanderson12

1) where is easter island and how did it get its name? 2) how do we know that polynesians were the ones to colonize easter island? 3) how is the island different today than it was when the polynesians first colonized it? 4) why did the polynesians cut down the trees? 3) what is a watershed? 6) how long does it take for water in the atmosphere to be fully replaced? 7) what role do trees take in the water cycle? 8) define groundwater and water table? 9) why are trees called water pumps? 10) what happened when the forests disappeared on easter island? 11) what is the point of the easter island story? 12) how can we take the story of easter island and relate it to what is happening on the planet now?

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