Bio 182 exam Study guides, Class notes & Summaries

Lamarck's model of evolution is best described as a mathematical model. correct answer: True Given Lamarck's model, biologist used deduction to infer how elephants used their trunks. correct answer: True Lamarck's model conflicts with a worldview of theistic (God-guided) evolutions. correct answer: True Lamarck's worldview could have been described as creationism correct answer: False Lamarck's model likely lost its appeal to biologists because the evidence for Drawing's model 0o...

What is a resource? correct answer: Any substance an organism requires to survive or reproduce. Ex) food, water, mates shelter, nutrients, oxygen/co2 What factors determine prey choice? correct answer: Energy content, encounter rate, handling time, search cost Profitability correct answer: (energy / handling time) animals = high profitability fruits/veggies = low profitability Why not grow to largest population size possible? correct answer: • Many die before having chance to re...

What does it mean when resources are described as patchy? correct answer: They are limited What is the engineering concept used to explain how organisms should forage? correct answer: Optimization model is benefit - cost Examples of resources correct answer: Food, water, mates, shelter, oxygen, CO2, nutrients, heat T or F: An organism should spend more time feeding in a patch when the average distance between patches is smaller correct answer: False T or F: An organism spends mor...

how many species live in planet Earth? - ANSWER-unknown-roughly 3 to 5 million why is life so incredibly diverse, yet so strangely similar? - ANSWER-organisms can contain similar features. planes have wings, birds have wings-this feature is useful for different things (different for penguins, pelicans, bats, eagles) true or false: biodiversity on earth will likely decrease in the near future? - ANSWER- true or false: scientists believe in evolution even though they currently lack eviden...

BIO 182 Exam 1-ASU Questions With Complete Solutions. how many species live in planet Earth? unknown-roughly 3 to 5 million why is life so incredibly diverse, yet so strangely similar? organisms can contain similar features. planes have wings, birds have wings-this feature is useful for different things (different for penguins, pelicans, bats, eagles) true or false: biodiversity on earth will likely decrease in the near future? true or false: scientists believe in evolution even though t...

Which group is not a population? correct answer: all four groups are populations How would you estimate the number of whales in a population? correct answer: mark and recapture What is a population? correct answer: a group of individuals of the same species living in the same area at the same time True or False? Sampling quadrats would be the better method for estimating the number of whales in a population. correct answer: false True or False? Mark and recapture would be the bet...

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What is extinction? correct answer: The loss or death of a species What is mass extinction? correct answer: A decline in biodiversity greater than the background extinction rate What is background extinction? correct answer: Background extinction occurs when certain populations are reduced to zero because of normal environment change, emerging disease, predation pressure, or competition with another species How are mass extinctions detected and how many have been detected? correct an...

How many modes of selection are there? correct answer: 3 What are the modes of selection? correct answer: Stabilizing selection, directional selection, and disruptive selection Stabilizing Selection correct answer: The mean of the trait remains similar over time but the standard deviation decreases Directional Selection correct answer: The mean phenotype shifts in a particular direction Disruptive Selection correct answer: The standard deviation of the trait increases as individ...