Galapagos Islands: Understanding the Impact of Environment on Species Evolution, Exams of Biology

Download Galapagos Islands: Understanding the Impact of Environment on Species Evolution and more Exams Biology in PDF only on Docsity! bio unit 3 pt 5 Most rated 100% Questions with Answers for great Scorers Which of the following statements about the Galapagos are true? - Correct answerThe Galapagos are a group of islands in the Pacific Ocean. For much of their history, the Galapagos Islands were not significantly influenced by human interaction Select some of the creatures you'd find in the Galapagos. - Correct answereverything but monkey observations - Correct answerthey have a unique shell. their population is in critical condition. Often has a white body and eats marine life. It lives in dry forest. It eats the eggs of seas birds and flesh of dead animals. observations - Correct answerlive near the slopes of volcanoes and have a unique shell. Lives off the coast and eats marine organisms. Only eats fruits and fetuses, eggs, and baby turtles. Observation pt. 3 - Correct answerAn endangered species because of the destruction of their nests. Preys on squid and fish. It also is found on the eastern island. Gathers energy by eating berries and crickets. Only found in the Galapagos. - Correct answerI think these factors caused a difference because the animals had to adapt to things in order to survive. Read the info icons and select which of the cases below shows two different species. Select all that apply. - Correct answerlion cricket View the images below to see if the boobies on the different islands are different species. - Correct answerYes, they are different species because they do not mate with each other. Which of the following best describes the beak size of the finches on Daphne Major? - Correct answerMost have average-sized beaks (Around 10mm). Your challenge is to create a population of finches where 80% have large beaks (greater than 10mm) in less than 100 generations. - Correct answerdrought Does changing the average rainfall on the island seem to have an effect on the traits of the population? What trait is being affected by the change in rainfall? - Correct answeryes beak size Which statement best explains why lower rainfall favors finches with larger beaks? - Correct answerLarge-beaked finches are able to eat the large seeds that are more common in times of drought (little rainfall). Select which graph shows the beak size of finches (shown on the x-axis) getting larger over time. - Correct answerfirst graph Which of following best describes directional selection: - Correct answerOne direction or extreme of the trait is favored (very large OR very small beak-depths). Which of the following demonstrates descent with modification? - Correct answerTwo purebred red ladybugs give birth to a white lady bug Select all of the following that are true. - Correct answerThe individual finches cannot change their beak size. The population of finches can change the percentage of birds with larger beaks over time. A single finch, over the course of its life, can change the size of its beak based on the food source available. A group of finches can, over time, have a different percentage of individuals with small and large beak sizes based on the food available. Only some birds in a population can change their beak size. When rainfall decreases, large seeds are the main food source on Daphne Major. Increasing the pressure of natural selection such as rainfall or predation rate. Increasing the pressure of sexual selection or mate preference. - Correct answerSpeed up trait shifts/speciation for both In all the cases where you have created a new species the process followed a particular pattern. Complete the diagram below showing the process leading up to speciation. - Correct answerFrom top to bottom only first three words 1. One population exist 2 .natural selection next to the sexual selection 3. A shift occurs 4. Some organism are no longer attracted 5. Organism no longer mate 6. SPECIATION challenge 5 - Correct answermess with each one by itself one by one then put insects on plentiful put cactus on plentiful and play What did you do to create a new species? - Correct answerNumber of cacti= increase Number of insects= increase Temperature= did not change Select which graph shows the change in the population of finches over time. - Correct answer3 Which of following best describes disruptive selection? Check all that apply. - Correct answerThe average version of the trait is not favored. Both extremes of the trait are favored (very large AND very small beaks). table - Correct answerFirst arrow:small beak bird mushrooms Second arrow:large beak bird cactus Which birds are favored by the introduction of cacti and insects on the island? Check all that apply. - Correct answerThe large-beaked finches The small-beaked finches sort - Correct answer1. all fish have yellow color 2. by chance a number of offsprings 3. blue bodied fish choose to mate 4.After generation of sexual selections 5.blue fish can no longer mate with yellow fish 6.END SYMPATRIC What is the divide isolating the bird population on Isabela - Correct answerC. A mountain range What do you predict will happen once a mountain range separates two populations of this bird? - Correct answerThe birds will develop new traits to become adapted to their new environments. Which best summarizes what happened to the traits on each side of the island after 100 generations? - Correct answerBeak depth changes from average size to favoring large beaks on one side and small beaks on the other side of the island. Was your hypothesis regarding the traits of the birds after separation supported by your observations? You said: " The birds will develop new traits to become adapted to their new environments." - Correct answeryes Why did different traits emerge in the two populations of finches separated by the mountain range? - Correct answerBoth populations were affected by a pressure of natural selection to adapt to a new food source. Based on what you've learned about allopatric speciation, what has to happen before allopatric speciation can take place? - Correct answer1. one population of organism exist 2. a geographic barrier exist 3. original population splits 4.selection factors cause both 5. trait in each population change 6. member of each population are no longer able to produce offsprings 7. ALLOPATRIC SPECIATION Which of the following is true about sympatric and allopatric speciation? - Correct answerBoth allopatric and sympatric speciation can result in the development of new species. Either sympatric or allopatric speciation can use the pressure of natural selection as part of its speciation process. - Correct answerWhat I usually think of evolution is a species evolving into something else and transforming into something different than what they were at first. Usually what comes to mind is how we as humans evolved from monkeys and how much we changed. How many different species of Galapagos finches are shown here? - Correct answer4 What is the theory of common descent? (Check all that apply) - Correct answerAn explanation of how the diversity of organisms emerged on earth A single ancestor can, through millions of years of natural selection, modifications, and speciation, evolve into many different species.