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- 4 Use the drop-down menus to complete the statements about the birds. The changed environment selected For Against the birds with smaller beaks. The population of birds with smaller beaks increased decreased because of an increase decrease in competition over small seeds.How is a clumped population distribution beneficial for prey animals? Being a member of a larger group provides protection for each individual from predators Prey animals rely on each other to acquire food Prey animals live in small family groups to raise young Clumped population distributions ensure that at least one member of the population knows how to identify the seasonal migration route.1. Imagine an altruistic behavior where the direct fitness cost to a donor is 6 and the indirect fitness benefit to the recipient is 30. a. Explain why the behavior is likely or unlikely to evolve between cousins. b. Explain why the behavior is likely or unlikely to evolve between full siblings. c. Explain why the behavior is likely or unlikely to evolve between a non-queen female wasp and her brother.
- 1. On the savannah of African exist two animals, the African Wild Dogs (Lycaon pictus) and the Spotted Hyenas (Crocuta crocuta). Both of these animals occupy a very similar niche in their community – a social carnivore, which hunts in packs. However, when their niche does completely overlap the Hyena will win the fight. Use this information to answer the following questions. a) If these two animals were to occupy the same habitat, knowing what you know about these populations, what do you think the outcome of these two populations would be? b) The African Wild Dog hunts at twilight, while the Spotted Hyenas hunt at night. This separation of niches allows for what ecological process to happen? Why is it important that this process happens? c) The population of African Wild Dogs is much smaller, and very isolated from one another. If you were trying to prevent this animal from going extinct – what would you focus your resources on conservation wise? (There are a number of answers for…1. From the animals in the figure, which species could have a positive indirect effect on the Possum? 2. If you suspect that competition between Wallabies and Bandicoots is leading to coexistence, describe an example of a piece of evidence that would support your idea. 3. If Tasmanian devils become extinct in the wild due to DFTD, name a species other than cats that you expect would change in abundance as a result. Explain how you think that species' abundance would change and why.8 Analyze if the following pairs of statements are correct. Choose: A, if both statements are correct; B, if only the first statement is correct; C, if only the second statement is correct; or D, if both statements are incorrect. 2a. Population density refers to the number of individuals within a designated area. 2b. Richness pertains to the number of species present in a specific location.
- 1.) Humans benefit from the presence of certain vitamin Kproducing bacteria that live in the large intestin The bacteria get food and shelter in return . This relationship is an example of A.)parasitism B.) predation C.) commensalism D.( mutualism 2.) A predator-prey relationship exists between the Canada lynx and the snowshoe hare. Lynx that are more successful hunters, are more likely to survive and reproduce, and thus pass on their traits to the next generation. Snowshoe hares that are faster or better at hiding are also more likely to pass on their successful traits From the above information , one can conclude that predator -prey interactions influence the process of A.) inbreeding B.) natural selection C.) artificial selection D.) parasitism 3.) Both intraspecific and interspecific competition affect population growth Which of the following statements about how population growth is affected by competition is correct? A.) Only intraspecific competition increases…7. The benefit of fighting for a territory is 12 reproductive units, and the cost is 8 reproductive units. What is your benefit if both opponents play dove? b. The benefit of fighting for a territory is 8 reproductive units, and the cost is 12 reproductive units. Should you be hawk or dove? Using Hawk dove Game Theory https://www.youtube.com/watch?v=lshGV-qxJmI1) How did the removal of sea otters affect the population of two other organisms? Please explain. (grey means they are no longer available in that ecosystem).
- 2)Which of the following best describes the difference between population size and population density? a)Population size measures the abundance of an organism, whereas population density measures the distribution b)Both variables measure abundance, but population density takes the into account the size of individuals, not just the number of individuals in the population c)Population size measures abundance, but population density measures how rapidly the size changes d)Population density measures the abundance of an organism, whereas population size measures the distribution e)None of these descriptions are correct5)How does the number of different prey species available to an organism affect the number of offspring it can produce in a breeding season? a)Population b)Community c)Ecosystem9) If the population of hawks in this area increases, their prey populations might decrease. Later, with fewer prey, the hawk population might decrease. The prey populations might then increase. This is an example of
