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Question: anyone have a knowledge about take a organismal biology test...

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Anyone have a knowledge about take a Organismal Biology Test Intro? I need help for question all with 1, 2,7 and 8 can answer give me a solved. Thanks!

Question 1:

Question 1. In 1981, fishery managers introduced nmysid shrimp to a Montana lake with the intention of increasing Below is a food web for this Montana lake BEFORE mysid shrimp were introduced The arrows move from prey to predator. For example, zooplankton are eaten by lake whitefish and kokanee salmon. Bull trout Bald eagle Lake whitefish Kokanee salmor Zooplankton A few yeas after introduction of mysid shrimp to the Montana lake, fisheries managers found that mysid shrimp consumed other zooplankton; these smaller zooplankton populations declined; and the kokanee salmon population disappeared. Based on your knowledge about biology and this infonmation, evaluate each statement as Likely or Unlikely to be arue: Likely Unlikely 1) Bull trout directly prey upon mysid shrimps, and phytoplankton. lake whitefish, k 2) Kokanee salmon population decline resulted from competition for food resources between mysid shrimp and kokanee salmon. 3) The only factor regulating the mumber of phytoplankton is predation by 4) If the amount of phytoplankton increases by one ton, a one ton increase in 5 A toxicant present in zooplankton that biomagnifies would be found at a higher concentration in lake whitefish than in bull trout. 6) If phytoplankton in the pond are at carying capacity, with phosphorous availability limiting growth, nitrogen run-off from a nearby agricultual field will increase phytoplankton growth. O 7) If regulations lead to an increase in bull trout, the lake whitefish and kokanee salmon populations will immediately increase in response.

Question 2:

The evolutionary relationships among these four species of crustaceans are shown in the phylogenetic tree below. head thoraxabdomen egments !1 23 45678 species A feeding appendage species B species C species D Based on this information and your knowledge about biology, evaluate each statement as Likely or Unlikely to be arue: Likely Unlikely 1) For an individual crustacean, segments that have different types of appendages have the same Ubx DNA sequences in their respective cells. 2) Based on the relationships in the phylogenetic tree above, there is only one possible scenario for the evolution of feeding appendages that first one, then two, then three feeding appendages arose. 3) The phylogentic tree provides support for three feeding appendages resulting in higher fitness than two feeding appendages. 4) All mutations that occur in an individual of species A will be passed down to its O 5) The fact that over 90% of species D individuals have an elongated feeding appendage o segment 4 means that this trait must be controlled by a dominant allele. 6) Any mutation appendage length, will impact feeding appendage length. in the DNA sequence o the MSH gene, which only controls feeding 7) Natural selection results in generating, not eliminating, new phenotypes in these 8) More information is requuired to determine if the difference in number of feeding appendages between species 9) A federal limit on the total amount of crustaceans harvested will equally protect all of these species. C and D are adaptations.

Question 7:

Question 7. Hydrothemal vents are locations in the deep sea where water heated below the seafloor exits. While most ofthe deep sea is around 2°C, vent water has been measured at over 400°C. These vents occur along plate boundaies and can be separated firom each other by thousands of kilometers. Chemicals dissolved in this water provide the main energy source to coummunities of organisms that live near hydrothemal vents. The figure above shows an annelid worm that lives at deep-sea hydrothermal vents. This worm lacks a gut and has an organ that contains intracellular bacteria. These bacteria metabolize hydrogen sulfide for the production of simple sugars in a process called chemosynthesis. An example of this process is written below. Based on your knowledge about biology and this infonmation, evaluate each statement as Likely or Unlikely to be arue: Likely Unlikely 1) Along the spectrum of symbiotic relationships, the association between this wonm and the bacteria is closer to mutualism than parasitism. 2) Carbon dioxide is a direct source of energy in photosynthetic and chemosynthetic systems. 3) Without chemosynthetic organisms, would be accessible to other organisms. 4) Gene flow resultng from larvae dispersing between hydrothermal vents can acto against local adaptation. 5 Gene flow between worm populations found at one vent and another vent is evidence for these worms being the same species. 6) A new allele appearing in an isolated genetic daift. 7) Some those that care for young, the survivorship of offspring is greater, but the mumber of offspring is smaller. the energy from the hydrothemal vents of these woms is evidence for species of deep-sea care for their young while others do not. For worms

Question 8:

Question 8. The two maps below show the average temperature and yearly rainfall at varying latitudes. Locations of interest are maked A-D. Average Temperature Average Rainfall 0° Low 45 Hgh 60° High Based on your knowledge about biology and this infonmation, evaluate each statement as Likely or Unlikely to be arue: Likely Unlikely 1) Climates are more similar at B and D than at A andB. 2) Yearly primary productivity is higher at A than C. 3) Total species diversity is higher at C than at D. 4) Plant species have more similar phenotypes at B nd D than at C and D. 5 Primay productivity varies more over the course of a year at A than at C 6) Mass deforestation at C affects the global climate. 7) İffertilizers are applied to agricultural plants at site Dthese fertilizers are a direct source of energy for plant growth.

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