Question
need help with 3 4 and 5 please! thanks in advance!
Over the past 60 years, many amphibian species have experienced become extinct. Scientists suspected that local human deforestation were the main reasons for these losses. However, research over the past 20 y population declines in protected areas of the world, such as nature preserves and parks widespread problems including inc 20 native amphibian species are threatened with extinction significant population declines, and some species have activities such as the destruction of wetlands, regional pollution, and ears reveals significant amp hibian as nature preserves and parks. These global declines suggest These global declines sugges ead problems including increased ultraviolet radiation, acid rain, and disease. In Switzerland, for examp erland, for example, 14 of the 3) Some biologists urge the collection of the few remaining individuals of some of the most threate most threatened 3) amphibian species in order to preserve them if they become extinct in the wild. If such captive-breeding programs could produce thousands of individuals from just a few of the remaining survivors, the species will still be threatened because of A) directional selection C) artificial selection B) a bottleneck effect D) mutations 4) 4) Which of the foll lowing is the strongest piece of evidence for why some scientists believe that we are at the start of a sixth mass extinctio s extinction? A) decrease in biodiversity C) decrease in fossil discoveries B) decrease in allopatric species D) decrease in hybrid fertility 5) 5) Examine the evolutionary relationships represented in the following figure. Based upon g figure. Based upon this diagram, the two most closely related species are Order Family Genus Species Felidae Panthera Panthera Mephitis Mephitis (striped skunk) Canivora Mustelidae Lutra lutra European Lutrarmm (Europe otter) Canis atrans (coyote) Canidae Canis Canis upus wolf) A) European otters and coyotes C) leopards and European otters B) coyotes and wolves D) leopards and striped skunks
Explanation / Answer
3) Some biologists urge the collection of the few remaining individuals of some of the most threatened amphibian species in order to preserve them if they become extinct in the wild.If such captive breeding programs could produce thousands of individualsfrom just a few of the remaining survivors, the species will still be threatened because of A bottle Neck effect
4) Which of the following is the strongest piece of evidence for why some scientists believe that we are at the start of a sixth mass extinction?
Ans): Because of Decrease in biodiversity
5) Examine the evolutionary relationships represented in the following figure. Based upon this diagram, the two most closely related species are.....
Ans): The two most closely related species are Coyotes and Wolves
