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Sources of Information: Use your notes, ppts and review
Sources of Information: Use your notes, ppts and review

... 2. ______ The offspring receives the best genes from each parent 3. ______ The offspring receives all the genes of both parents 4. ______ The offspring receives all of the genes from the strongest parent 5. ______ The offspring receives a mix of genes from both parents Define: ...
File - Pomp
File - Pomp

... themselves cannot decide if they will survive – they cannot change their traits • In our beetle example, what part of the environment did the selecting? ...
Evolution
Evolution

... doing so caused the theory of spontaneous generation to be disproved/disappear  The theory of biogenesis replaced it  Biogenesis is the theory that all living organisms must come from other living organisms ...
Directional Selection
Directional Selection

... Morphological - Can be distinguished anatomically - Physical traits differ - Specialist decides what criteria probably represent reproductively isolated populations - Most species described this way ...
Chapter 6 - Angelo State University
Chapter 6 - Angelo State University

... Evidence for Punctuated Equilibrium Speciation is episodic with a duration of 10,000 to 100,000 years. Species survive for 5-10 million years; speciation may be less than 1% of species life span. Small fraction of evolutionary history contributes most morphological evolutionary change. Allopatric sp ...
Document
Document

... 1. The introduction of antibiotics such as penicillin several years ago was immediately effective in combating infections caused by Staphylococcus. In 1958, however, there were several outbreaks of staphylococcal infections. People with the infections did not respond to treatment with any of the ant ...
natural selection - Lawrence County High School
natural selection - Lawrence County High School

... survive and reproduce leads to a gradual change in a population, with favorable characteristics accumulating over ...
Answers to Mastering Concepts Questions
Answers to Mastering Concepts Questions

... species change as they spread from their original location. Jean Baptiste de Lamarck proposed the inheritance of acquired characteristics. Charles Lyell renewed the argument of uniformitarianism and applied gradual geologic change to the history of the Earth and life; Lyell also suggested that the E ...
Evolution - Burlington Township School District
Evolution - Burlington Township School District

... “On the Origin of Species” in 1859 - Evolution By Means of Natural Selection ...
I. Student misconceptions
I. Student misconceptions

... variation to the theory of evolution by natural selection. a. The term adaptation is used to describe changes in an individual over its lifetime (such as physiological adaptation). It is also used to describe changes in traits that increase the evolutionary fitness of an organism in its environment. ...
Natural Selection
Natural Selection

... – Inheritance of acquired characteristics • E.g., giraffes really wanted leaves, so they stretched their necks and….. • Sounds crazy, but a lot of people think this way • ‘We will all have giant heads and tiny bodies someday’ • ‘Cave swelling fish don’t use their eyes so they disappear’ • ‘We don’t ...
EVPP 110 Lecture - Populations - Evoluti
EVPP 110 Lecture - Populations - Evoluti

... – those individuals that are well adapted to their environment can be said to be the most fit for that environment, or the “fittest” • hence the phrase “survival of the fittest” – natural selection leads to, in subsequent generations, • favored traits (well adapted) will be represented more and more ...
Mechanisms for Evolution
Mechanisms for Evolution

... • There are five factors that can lead to evolution – Genetic drift changes allele frequencies due to chance – Gene flow moves alleles from one population to another – Mutations produce the genetic variation needed for evolution – Sexual selection selects for traits advantageous for mating – Natural ...
CHANGE IN POPULATIONS AND COMMUNITIES
CHANGE IN POPULATIONS AND COMMUNITIES

... frequencies that evolve when mating is random and neither selection nor drift are operating For two alleles (A and a) with frequencies p and q, the Hardy-Weinberg frequencies are ...
Answer Key - cloudfront.net
Answer Key - cloudfront.net

... Choose the letter of the best answer. (15 credits) 1. A population of squirrels that contains a ...
Chapter 1 Notes - Pikeville Independent Schools
Chapter 1 Notes - Pikeville Independent Schools

... For the HW equation to work, 5 conditions must be met - large population size - no migration - no mutations - random mating - no natural selection ...
Natural Selection Video Guide
Natural Selection Video Guide

... o The picture at right is a drawing Darwin created to illustrate the idea of common ancestry. Tape the picture in your BILL notebook, then explain his idea, and justify your explanation with multiple examples of supporting evidence. o Summarize and use a diagram to illustrate each of Darwin’s observ ...
Charles Darwin - CivFanatics Forums
Charles Darwin - CivFanatics Forums

... of food resources, a high mortality rate due to lack of food or presence of predators, a high fertility rate, all of which resulting in a constant population), and that only those individuals with the most advantageous traits will survive to adulthood (at which stage they procreate). These advantage ...
Physical Fitness - Indian Hills Middle School Physical Education
Physical Fitness - Indian Hills Middle School Physical Education

... refers to the amount of body fat verses bone, muscle, and sinew. Boys: 16% body fat, Girls: 20% body fat. The best way to measure body fat is ...
CH05 IM
CH05 IM

... 2. Adaptation or adaptive traits are heritable traits that help organisms to survive and reproduce better under prevailing environmental conditions. 3. Environmental changes require adaptations also. Organisms must: a. adapt to the new conditions, b. migrate to an area with a more favorable environ ...
Biol-1406_Ch15notes6pg.pdf
Biol-1406_Ch15notes6pg.pdf

... individuals who attempt to utilize a _______ __________ – May be between individuals of ______ species or __________ species – Most intense among members of the _______ ...
Biol-1406_Ch15Notes.ppt
Biol-1406_Ch15Notes.ppt

... compromise between _______________ … • Not all genotypes changes are beneficial. – i.e. giraffe’s neck: • Larger can help on a fight • Can make it vulnerable ...
Reproductive Patterns
Reproductive Patterns

... Asexual reproduction has several advantages: 1. SESSILE animals (animals that CANNOT move) can reproduce without finding a mate. 2. Allows the production of MANY offspring in a short period of time because all individuals in a population reproduce. ...
Natural selection
Natural selection

... explain what causes natural selection to occur. 1) All living things have variety within species. 2) Traits are inherited from parents to offspring. 3) Species compete with one another for limited resources (food, shelter, water, nutrients etc.). 4) Those individuals that inherit an advantageous tra ...
Final Test Study Guide Unit 4: Adaptation Knowledge
Final Test Study Guide Unit 4: Adaptation Knowledge

... Difference between inherited and acquired traits (Traits, 3/21) Understand how one broken gene can affect the whole body (Genes to Traits, 3/22) The differences and pros/cons of sexual and asexual reproduction (Passing on Traits, 3/23) Examples of organisms that use sexual vs. asexual reproduction ( ...
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Inclusive fitness

In evolutionary biology inclusive fitness theory is a model for the evolution of social behaviors (traits), first set forward by W. D. Hamilton in 1963 and 1964. Instead of a trait's frequency increase being thought of only via its average effects on an organism's direct reproduction, Hamilton argued that its average effects on indirect reproduction, via identical copies of the trait in other individuals, also need to be taken into account. Hamilton's theory, alongside reciprocal altruism, is considered one of the two primary mechanisms for the evolution of social behaviors in natural species.From the gene's point of view, evolutionary success ultimately depends on leaving behind the maximum number of copies of itself in the population. Until 1964, it was generally believed that genes only achieved this by causing the individual to leave the maximum number of viable direct offspring. However, in 1964 W. D. Hamilton showed mathematically that, because other members of a population may share identical genes, a gene can also increase its evolutionary success by indirectly promoting the reproduction and survival of such individuals. The most obvious category of such individuals is close genetic relatives, and where these are concerned, the application of inclusive fitness theory is often more straightforwardly treated via the narrower kin selection theory.Belding's ground squirrel provides an example. The ground squirrel gives an alarm call to warn its local group of the presence of a predator. By emitting the alarm, it gives its own location away, putting itself in more danger. In the process, however, the squirrel may protect its relatives within the local group (along with the rest of the group). Therefore, if the effect of the trait influencing the alarm call typically protects the other squirrels in the immediate area, it will lead to the passing on of more of copies of the alarm call trait in the next generation than the squirrel could leave by reproducing on its own. In such a case natural selection will increase the trait that influences giving the alarm call, provided that a sufficient fraction of the shared genes include the gene(s) predisposing to the alarm call.Synalpheus regalis, a eusocial shrimp, also is an example of an organism whose social traits meet the inclusive fitness criterion. The larger defenders protect the young juveniles in the colony from outsiders. By ensuring the young's survival, the genes will continue to be passed on to future generations.Inclusive fitness is more generalized than strict kin selection, which requires that the shared genes are identical by descent. Inclusive fitness is not limited to cases where ""kin"" ('close genetic relatives') are involved.
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