Biobyond Unit 3 Birds and the Moths Reading Guide Questions And Answers Verified 100% Correct

Biobyond Unit 3 Birds and the Moths Reading Guide Questions And Answers Verified 100% Correct How do selective pressures act? - ANSWER -Act over time to change the distribution of traits in an organism adaptation - ANSWER -process of traits becoming more frequent in a population, response to selective pressures How can organisms like bunnies grow from one generation to the next? - ANSWER -Exponentially Why is the world not overrun by bunnies if they grow exponentially? - ANSWER -Limited food, shelter and water can limit the number of organisms living in an area. What factors can determine organisms that are best suited to survive - ANSWER Environment, food and predators How do adaptations emerge - ANSWER -As a means of combating selective pressures put on a population. what is carrying capacity? - ANSWER -the limit on a population: that is how many of an organism can survive in an environement what is the peppered moth an example of - ANSWER -camouflage what does camouflage do for an organism? - ANSWER -allows it to blend into natural environment and hide from predators what happened to tree color in industrial revolution? - ANSWER -got darker due to soot what happened to peppered moths when trees were darker? - ANSWER -less camouflage, got eaten more, more black moths reproduced (carbonaria) increase in factories impact on carbonaria - ANSWER -increase increase in factories impact on typica - ANSWER -decrease increase in factories impact on insularia - ANSWER -no impact what were the two factors that could affect the peppered moth population - ANSWER -factories, predation what does the predation rate represent - ANSWER -number of prey killed by predators what is carrying capacity? - ANSWER -maximum size of the population that can exist in an environment what do limiting factors do (bunnies) - ANSWER -prevent exponential growth pattern what are limiting factors based on? - ANSWER -the fact that organisms share environment and ecosystems with other organisms What is ecological niche - ANSWER -Particular set of conditions that the organism thrives in and interacts with Selective pressures - ANSWER -Factors that favor one segment of the population over others