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Give three possible reasons for there being fewer two year old than one year old fish. Give reasonable answers.
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- 37. When 2 different species are competing for a resource, in the absence of other factors, one will usually win because the competition is asymmetrical. That is because: One species usually cheats. Populations have different numbers of individuals. Different species have different morphologies (how they look) and physiologies (how they function). All of the choices are true.57. Lobster is a very valuable seafood export in Canada. The lobsters caught off the coast of Atlantic Canada make up 50% of the world lobster supply. In order to protect the lobster population from overfishing, the Government of Canada has conservation measures in place to ensure the population size is maintained. Some of the measurements include placing a limit on the number of fishing licenses issued, limiting the fishing seasons, establishing minimum and maximum lobster size limits, and protecting egg-bearing females. Fisheries and Oceans Canada regularly monitors and collects data to estimate the lobster population size.The carrying capacity of the lobster population can be best described as the Select one: a. initial bottom plateau in a logistic growth curve that demonstrates a stable population b. steep increase in an exponential growth curve that demonstrates the high biotic potential c. slow increase in a linear growth curve that demonstrates controlled and sustainable…[itemB5] (refer to the photo below) Which has a longer life expectancy - fish or oysters?
- To measure the population of lake trout in a 250-hectare lake, 100 individuals were netted and marked with a fin clip, and then returned to the lake. The next week, the lake is netted again, and out of the 300 lake trout that are caught, 15 have fin clips. Using the capture-recapture estimate, the lake trout population size could be closest to? Also, what formula do I use to solve this problem? Thank You!87)The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the generation time for this species (rounded to the closest full number)? x nx bx 0 678 0 1 102 0 2 31 0 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 Question 87 options: 5 years 12 years 3 years 10 years56. When Yellowstone National Park was created in the late 1800s, the grey wolf population was not protected, which led to the elimination of the population in 1926. In 1995, 21 wolves were reintroduced in Yellowstone National Park.The following table shows the total number of wolves in Yellowstone since the reintroduction in 1995: Year Number of Wolves 1995 21 1996 51 1997 86 1998 112 1999 118 2000 119 2001 132 2002 148 2003 174 2004 171 2005 118 2006 136 2007 171 2008 124 2009 96 2010 97 2011 98 2012 83 2013 95 What is the expected growth pattern and growth curve of the grey wolf population in Yellowstone National Park, respectively? Select one: a. logistic and S-shaped b. exponential and J-shaped c. logistic and J-shaped d. exponential and S-shaped
- 54. Very similar species of salamanders may breed in different habitats. Some species breed in ponds, while other species prefer to breed in streams. Therefore, these similar species do not even encounter one another. This is an example of what type of reproductive isolating mechanism? Explain30. What is an example of a reproductive barrier that is due to female blue footed boobies choosing a mate with the bluest feet? Group of answer choices a.behavorial isolation b.temporal isolation c.gametic isolationTrue or false? a) The Cheetah and the Bobcat are equally related to the European Wild Cat. b) The Ocelot evolved before the Domestic Cat. c)The branch leading to the Ocelot became reproductively isolatedfrom the branch leading to the Domestic Cat before the branch leading to the Domestic Cat became reproductively isolated from the branch leading to the Asian Leopard Cat. d) The Leopard and the Ocelot are equally related to the Bobcat.
- Please help with the following: Prior to approximately 12 KYA, humans were hunter-gatherers and relied on wild plants and animals for subsistence. This means that their conscious manipulation of the genomes and gene pools of other organisms was essentially non-existent. 12KYA signaled the beginning of plant and animal domestication efforts. A. Two true statements; one false statement B. Two false statements; one true statement C. All True statements D. All False statements E. None of the aboveDescribe a situation in which a population would undergo the bottleneck effect and explain what impact that would have on the population’s gene pool.Which of the following events would not negatively impact Yellowstone’s grey wolf carrying capacity? snow in winter a beaver damming a river upstream a forest fire chronic wasting disease in the deer population