Thinking about Natural Selection and Adaption, what if instead the predators were 4 different spoons: ¼ teaspoon, 1 teaspoon, 1 tablespoon, and 1 large serving spoon? Then what if each time beans (the prey) were captured, they had to be immediately emptied into a narrow-necked jar (with an opening about the size of 1 teaspoon)? What do you think the outcome of the experiment might be in this new situation? (Which “predator” will be the most successful, which the next most, etc. down to the least successful, and why?) Be sure to explain your reasoning

Thinking about Natural Selection and Adaption, what if instead the predators were 4 different spoons: ¼ teaspoon, 1 teaspoon, 1 tablespoon, and 1 large serving spoon? Then what if each time beans (the prey) were captured, they had to be immediately emptied into a narrow-necked jar (with an opening about the size of 1 teaspoon)? What do you think the outcome of the experiment might be in this new situation? (Which “predator” will be the most successful, which the next most, etc. down to the least successful, and why?) Be sure to explain your reasoning

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 3RQ: Which of the following situations will lead to natural selection? a. The seeds of two plants land...

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. The images below show two separate theories of how organisms evolve. Which question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? Why don’t the shorter neck giraffes feed on grasses and lower vegetation? How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?
In Procedure 9.1, we will model natural selection in a prey population. Our prey population is beans. The students are the predators. As predators, you are going to capture the biggest beans possible. Whichy size prey will survive the hunt, the large ones or the hsmall ones?
You are working on an undergraduate project, studying an insect species. A recent study showed that the pigmentation pattern used for camouflage is made by an enzyme K. However, it has been shown that, when compared to the Kk individuals, the KK homozygotes would have a higher chance of dying from pigment overdose before growing up, while the kk individuals can easily fall to predation before becoming adults. In fact, when compared to the Kk individuals, the estimated selection coefficients for KK and kk are 0.25 and 0.5, respectively. You are interested in what would happen to these alleles. At present, you have conducted a population survey and have 1000 larvae in your collection. Among them, 360 are KK, 480 Kkand 160 kk. 1)How many larvae would survive to adulthood a) 170 b) 414 c)583 d)750 e)830 2)Following up the previous question, what would be the KK genotype frequency at the adult? a) 0.090 b) 0.270 c) 0.325 d) 0.360 e) 0.529 3)Following up on the previous question,…
You work for the science division of an agribusiness that is trying to stay ahead of upcoming food trends. The company predicts that duck eggs are likely to become a popular fad soon, and you've been tasked with determining the feasibility of harnessing the power of natural selection to breed ducks to produce more consistently sized eggs. You go through the recent records for the company poultry farm to examine egg size for ducks and their female offspring. The mean egg size is 120 grams, with a variance of 480 grams2. You plot out the results with the mothers' average egg size on the x-axis and average daughters' egg size on the y-axis, and you calculate the slope of your linear regression between the two as 0.28.What is the narrow-sense heritability for egg size in this population?
5) You want to know if an octopus (octopi are very intelligent!) can tell the difference between circles and rectangles. You provide each octopus with one circular disk and one flattened rectangle. You hide food under the rectangle. After several trials, you then count how many times the octopus picks up the circle and how many times it picks up the rectangle. You get the following results: Circles: 11. Rectangles: 29 Can the octopus tell the difference between circles and rectangles? (Hint: if the octopus can't tell the difference, what's the probability that he/she will pick a circle?
In your own words, how does Competition and selection support natural selection? Use at least 1 example from the Beaks of Finches lab in your answer.
What is artificial selection? 1 point When the environment selects the best traits to survive and be passed on to future generations. When females of the species select the best traits to survive and be passed on to future generations. When males of the species select the best traits to survive and be passed on to future generations. When humans select the best traits to survive and be passed on to future generations.
Book: Greatest Show on Earth Answer the question below. In chapter 3, Dawkins suggests that selection is powerful yet unconscious of its actions ("without any understanding at all"). He uses a variety of examples to highlight how various organisms drive selection, sometimes consciously and sometimes unconsciously, by mediating the breeding process. Using one of the examples explain how some organisms unconsciously drive the selection of others. -150 word minimum
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So how do we actually decide whether the difference is large enough? We use statistical tests to calculate a p-value (probability) for the difference between the two groups we are comparing. In the beetle food preference experiment from above, it was found that beetles spend longer times with food #1 compared to food #2, and the p value for this difference was calculated to be 0.9. What does a p value of 0.9 mean here? Group of answer choices A- There's a 9 (nine) % chance that the difference is due to actual beetle preference of food #1 over food #2. B- There's a 9 (nine) % chance that the difference is due to chance, and not actual beetle preference of food #1 over food #2. C- There's a 90% chance that the difference is due to chance, and not actual beetle preference of food #1 over food #2. D- There's a 90% chance that the difference is due to actual beetle preference of food #1 over food #2.
Define natural selection using the 5 points below to explain its role in understanding primate behavior. (1) there is variation among individuals; (2) some of that variation is heritable; (3) there is always competition between individuals for resources; (4) some variants outcompete other variants and leave more offspring; (5) to the extent that the parent's traits are heritable, then a larger portion of the next generation will reflect those traits.