Habitat selection Study guides, Class notes & Summaries

Define biodiversity - ANSWER the diversity of plant and animal life in a particular habitat (or in the world as a whole) Define genetic diversity - ANSWER the total genetic information contained within all individuals of a species, population, or community Why is genetic diversity important? - ANSWER provides the raw materials for adaptive change Define adaptive change - ANSWER change in response to the environment's "natural selection: Define species diversity - ANSWER the diversi...

WVU Bio 117 Exam 1 Latest Update Graded A+ evolution a change in a population over time natural selection traits within a population vary, and some individuals leave more offspring than others based on Fitness and selection pressure Five Mechanisms of evolutionary change natural selection gene flow nonrandom mating genetic drift mutation Fitness reproductive success 3 types of selection directional stabilizing disruptive directional selection trend in the bell curv...

Allopatry - Vicariance - Chance separation (earthquake, etc.) Allopatry- Dispersal - A population moves to a new habitat, colonizes it, and forms a new population Although both are possible, which of the following situations is more probable regarding the evolutionary history of a species (i or ii): i. Common characteristics are usually shared with other closely related organisms ii. Common traits evolved several times throughout history and have nothing to do with shared ancestry - i? Ap...

What is an animal's niche? How many dimensions can a niche have? Can animals share a niche? - Answer-An animal's niche is the functional role of an organism considered in the environment in which it lives, its "job." A niche is multidimensional. No two organisms can occupy the same niche at the same time in the same place. What is a specialist vs a generalist? - Answer-A specialist fits into their environment tightly and there is no room for dealing with changes or for colonizing differ...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

RESEARCH AND STATISTICS ANSWERKEY (15 MARKSRESEARCH AND STATISTICS ANSWERKEY (15 MARKS) Q1. Define Sampling and Explain probability sampling atifie random sampling techniques. Answer Defination: Sampling is a process of selecting representative units from an entire population. Probability Sampling Introduction : It is one of a technique of sampling ,it is based on theory of probability. It involves random selection of the elements from the population Techniques of probability sampling ...

snails. Scientists studying these snails found that while 47 percent of the snail population was striped, 56 percent of the snails eaten by birds were striped. What could scientists conclude about the snails? - ANSWER Solid shell snail genes will increase in the population. The flesh-eating bacteria, Vibrio vulnificus, destroys healthy tissue. Infectious agents such as this are best classified as what kind of environmental factor? - ANSWER Pathogenic Between 1932 and 1968, a chemical facto...

Biology 1108 Unit 1 EXAM Questions and Answers 100% Pass The term "n" refers to the size of a population, that is, the number of individuals in that population. In general, in a sample of n individuals, the frequency of an allele is: A)the number of occurrences of the allele. B)the number of occurrences of the allele divided by n. C)the actual value of n D)the number of occurrences of the allele divided by twice the number of individuals in the sample (2n). E)twice the number of occur...

environmental pressures correct answers the factors (abiotic or biotic) in an ecosystem which put pressure on an organism's survival and increase competition (whether inter-species or intra-species) biodiversity correct answers a combination of the species diversity, genetic diversity and habitat diversity of an ecosystem variation correct answers the differences, either physical or genetic, between individuals of a species simpson's diversity index correct answers a measure of divers...

Most organisms share some features like... correct answer: Even the most desperate organisms share some features, suggesting that the single, nine random process generated diversity. True or False #1: biodiversity on earth will likely decrease in the near future. correct answer: True! Fingerprints of human activity, spread of an invasive species, Rapid change and global climate, habitat destruction, Deforestation What are the Three World Views? correct answer: 1. Natural Evolution - Evo...