What are some of the advantages to Italy of having such diverse regions? What are some disadvantages?

18. (07.07 HC) Due to its location, Hawaii does not have very many land birds. The Hawaiian honeycreepers are a favorite for many ornithologists. There are over 50 species of honeycreepers that can all be traced back to one ancestor. The level of diversity in an ecosystem can be determined by the frequency of speciation and extinction. (8 points) a. Describe speciation and identify two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to speciation. b. If the Hawaiian honeycreepers became extinct, explain how the newly available niches could lead to speciation.

is  humans are "special" and will be able to withstand the dreary outlook of our species predicted by many?

Which of the following models, that attempt to explain human origins and dispersal, no longer is supported due to current information supplied by genetic evidence?  In other words, which model has been thrown out while the other two are still being debated? Group of answer choices multiregional model partial replacement model complete replacement model

what is the evolutionary benefit for some mammals such as dogs that only see a small subset of the color spectrum?

How does evolution work to create the diversity of life on Earth?

Why is the massacre of approximately 8,000 Muslim men and boys in Srebrenica (Bosnia) in July 1995 an example of the limitations of United Nations peacekeeping? A. The limited mandate and light weapons of the peacekeeping force were not sufficient to stop the Bosnian Serb army from overrunning the safe zone.B. United Nations peacekeepers could not effectively monitor elections to ensure their fairness.C. United Nations safe havens proved to be breeding grounds for transnational terrorist groups.D.The United Nations could not convince any countries to contribute troops to a peacekeeping mission in Srebrenica.

How is social stratification in Great Britain and the former Soviet Union the same?

Recent published research has documented declines in flying insect populations. Describe two main threats to the survival of flying insects and one thing that we will we lose from our planet if flying insect species become extinct. Describe two ways in which we might prevent this catastrophe from worsening.

If Chthamalus were the stronger competitor for space, what would happen to the range of Balanus in the intertidal region? O Balanus' range would increase in size and take over the entire intertidal region. Chthamalus and Balanus would coexist within this range. O Balanus' range would increase in size and take over the entire intertidal region. Balanus would kick out Chthamalus from the entire region Chthamalus would be extirpated from the area. 1. O Balanus' range would decrease in size. Chthamalus would kick Balanus out of the intertidal region. Balanus would be extirpated from the area. O Nothing would happen to the size of Balanus' range, but Balanus and Chthamalus would coexist in the intertidal region.