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- Activity 3: DIFFERENCES IN SPECIESResearch 5 similar species with different characteristics.Example: Gartner snakes live One lives in waterin the same regionOne lives in landAmazingly, a water bear -microscopic invertebrates- can adjust its metabolism to zero and “hibernate” when the habitat dries. Then, presto-add water and it springs back to life. This is an example of ___ to a ____stress.a. acclimation, temperatureb acclimation, waterc adaptation, energyd adaptation, nutrientsPart A) A biologist notices that the same species of Tortoise exists in Texas and Mexico.Yet these tortoises have somewhat different life histories. This is probably due to the diverse array of__that each tortoise has with different components its own environment.a. interactionsb. conversationsc. adaptationsd. all of thesePartB.). If water amounts and food production capabilities decrease, what can happen to carrying capacity?a. increase b. decreasePart C. Alabama should be a desert but it is a lush green environment. What keeps us from being so dry?a. Hadley Cellsb. Ocean Gyresc. Mountainsd. all of the above
- Which of the following animals uses the largest percentage ofits energy budget for homeostatic regulation?(A) marine jelly (an invertebrate)(B) snake in a temperate forest(C) desert insect(D) desert birdAge structure diagrams for two hypothetical human populations are shown below. Describe the growth rate of each population and discuss the current and future social and economic problems that each is likely to face.Humans have the most urgent need for a continuoussupply of ________.a. foodb. nitrogenc. oxygend. water
- Some species of animals gain physiological advantages byexploiting the specialized physiological capabilities of otherspecies. Explain how marine mammals that prey on teleost fishrather than invertebrates illustrate this principle. Also explainhow carnivorous mammals that prey on herbivorous mammalsin deserts illustrate the same principle.Just answer letter B a) Describe the two basic means by which living organisms obtain energy from the environment. Identify one example of each, and explain at least one similarity and one difference in biological structure that supports these two means of dealing with energy needs. b) Construct a diagram to show the:-direction of energy flow-type of energy flowing-release of heat-impact of the sun on energy flow-between the two classes of organisms you described above. Justify the inefficiency of this system.In an ecosystem, these organisms are responsible for convertingsolar energy to the stored energy found in organic compounds. a. herbivoresb. decomposersc. producersd. carnivorese. None of these are correct.
- Part B) Paul Ehrlich prediction the carrying capacity of the global human population to be around 5.8 billion people. This is an: a)underestimation of the actual carrying capacityb)overestimationC)He was exactly right Part c) Amazingly, a water bear -microscopic invertebrates- can adjust its metabolism to zero and “hibernate” when the habitat dries. Then, presto-add water and it springs back to life. This is an example of ___ to a ____stress.a. acclimation, temperatureb acclimation, waterc adaptation, energyd adaptation, nutrientsPart D) The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US. However only 5 million acres now remain. This refers to a large reduction ina. the species rangeb a metapopulationc a mega populationOld People e = 100 calories λ = 10 per night h = 2 hours Middle Aged People e = 400 calories λ = 20 per night h = 5 hours Young Adults e = 300 calories λ = 10 per night h = 2.5 hours Suppose that the organism need 1000 calories per night. - Which food item should the organism prefer, and which ones would you expect them to eat on a regular basis? Explain why and show calculations. - Explain marginal value theorem, and how it might relate to an organisms foraging decisions. - λ for Old People should increase in the coming years. How could that affect this organisms feeding on humans?In ecological systems, a rough rule of thumb is that when energyis transferred from plants to plant-eaters or from preyto predator, the efficiency is only about 10% (p. 72). Muchof this inefficiency is a consequence of the second law ofthermodynamics. Another way to think of this is that eating 1calorie of material from an animal is the ecological equivalentof eating 10 calories of plant material.Humans are considered omnivores because we can eat bothplants and animals. Our food choices have significant ecologicalimpacts. With this in mind, calculate the ecologicalenergy requirements for four different diets, each of whichprovides a total of 2000 dietary calories per day. How many ecologically equivalent calories would it taketo support you for a year, for each of the four diets listed?