Determine the type of speciation described in each paragraph. Two populations exist in the same geographic area. Differences in behavior or choice of ecological niche separate the populations. Once enough genetic differences accumulate between the populations, they no longer interbreed and are two distinct species. Some species exist over large geographic ranges. The populations found at the extreme ends of the range can develop enough genetic or behavioral differences that they are no longer able to interbreed if brought together. The populations at the ends of the range are separate species. A geographic barrier separates two populations. When the geographic populations are reunited, they no longer interbreed and are unique species.

Question Completion Status: Your answers are saved automatically. L A Moving to another question will save this response. Question 13 Which are the fittest individuals in a population? Are those that produce the largest number of offspring that survives to adulthood and is fertile Are those who are the strongest competitors Are those who islive the longest 00 Are those that produce the largest number of offspring no matter how for how long it lives and how fertile it is A Moving to another question will save this response. MacBook Air

QUESTION 18 Consider the following scenario to answer the next two questions. Data from a hypothetical cohort study examining the association between lack of seat belt use and fatal vehicle crashes is presented in the following 2x2 table. Seat Belt Use Fatal Crash 60 30 90 No Yes Total No Fatal Crash 175 450 625 Total 235 480 715 Using this information, calculate the attributable risk. Express your answer as a decimal, and round to the nearest hundredth.

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Race is a biologically valid concept. Group of answer choices True False

L I s t e n  t o th e  f o l l o w I n g  podcast and a n s w e r  t h e s e. Q u e s tions :    - What is the Eugenics movement and how was it applied in the US?  - What perspective did Boas offer that challenged the Eugenics view of the world? p le as e don't copy and paste  p le a se answer both

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The next five questions (questions 11-15) are related to each other. Read all of the scenarios very carefully and in order and select the correct answer. A population of 10,000 blue grasshoppers lives on an island. Most members of the population live among the grasses because they are not very good climbers. Some grasshoppers live in the trees because they are good climbers. One year, a short-legged mouse arrived at the island and ate all grasshoppers within its reach, thus totally wiping out the grasshoppers living in the grasses. Luckily, those grasshoppers that were good climbers were spared. This story is an example of Gene Flow Founder Effect C Natural Selection Genetic Drift

You are a mad scientist tasked with the evil job of designing a novel species. This species will be introduced to an ecosystem and must cause as much damage as possible. What abilities and characteristics will you give this species to make it successful? Be sure to explain why you choose each aspect. Explain your choice in 3-5 sentences.

___ ___ [two words] refers to the limit an environment places an organism's reproductive success.