Hi, please I need your help with these questions. Thank you so much guys A mass

Question

Hi, please I need your help with these questions.

Thank you so much guys

A mass extinction occurs when The extinction rate is about 1 species per 100 years for every 10,000 species. At least 50% of all existing species go extinct in a relatively short period of time. 10% of all existing species go extinct in a relatively short period of time. There is a slow die off of common species and new ones take over. The current extinction rate is 1 species per 100 years, per 10,000 species. 50 species per 100 years, per 10,000 species. Not able to be determined with any accuracy. Is about the same as the historical back ground frequency. Based on the lecture, the single biggest factor causing extinction Rapid human population growth. Increased volcanism causing global warming. Changes in solar output causing global warming. The rise of predators removing herbivores. The current cause of global climate change is from Changes in solar output. Increased volcanism in the oceans. Burning of fossil fuels. Changes in the Earth's orbit around the sun. Which of the following observations support global climate change Loss of arctic sea ice Increasing surface temperatures Rise in atmospheric carbon dioxide levels. Increase in extreme weather events. All of the above observations support global climate change. Habitat fragmentation is a problem for diversity because It divides the habitat into smaller fragments. Small patches may be different in structure from larger habitats. Smaller habitats lose diversity over time. All of these are correct. Many rivers have been greatly altered Through damning that reduces natural flow variability. By the introduction of exotic species that have extirpated native species. Straightened to resemble ditches. All of these are correct.

Explanation / Answer

59.d

60. b

61.d

62.c

63.e

64. d

65. a

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.