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... ____ Horse evolution shows long stable periods of little evolution interrupted by brief periods of rapid change ____ The Galápagos finches evolved through natural selection from a common ancestor into a wide variety of different looking species with different kinds of beaks ____ At the end of the Cr ...
Principles of Evolution
Principles of Evolution

... Four-limbed vertebrate animals all have the same bones in the forelimbs, but the bones are shaped differently. In modern terms, this suggests a shared set of genes (for the bones) arising from common ancestry. ...
File
File

... Darwin discussed many examples of __________________________________________, in which humans have modified species through selection and breeding. Figure 13.2: Examples ...
How do organisms sometimes change over time?
How do organisms sometimes change over time?

... How do organisms ensure the survival of there species? ...
A. Darwinian - cloudfront.net
A. Darwinian - cloudfront.net

... A. Long-necked giraffes eat more grass than short necked giraffes so their necks grow longer. B. Natural variation in the population produces some longer and some shorter-necked giraffes and longer necked giraffes can reach food more easily and survive to pass on their genes. C. Some giraffes have a ...
SI Bio 211
SI Bio 211

... #35 What is natural selection? #36 Do individuals evolve? Why or why not? #37 Does evolution act on phenotype or genotype? #38 What is a species? #39 What is a population? #40 What is the gene pool? #41 What is the cell theory? ...
Natural Selection Or, how did we get here….
Natural Selection Or, how did we get here….

...  Survival of the Fittest (which Chucky D NEVER said) means those who have the most offspring that reproduce  So, the answer to the trilogy of problems is:  ‘Descent with modification from a common ancestor, NOT random modification, but, modification shaped by natural selection’ ...
Natural Selection - Dave Brodbeck
Natural Selection - Dave Brodbeck

... – 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 ...
Mock Exam 4 (Answers) - Anthony Todd
Mock Exam 4 (Answers) - Anthony Todd

... c. Seals have flippers that make them great swimmers but make their movements on rocks and land very cumbersome d. Rabbits that live in colder regions tend to have smaller ears than rabbits of the same species that live in warmer regions e. Cows are selectively bred to gain a higher milk yield. 25. ...
ch4 - Otterville R-VI School District
ch4 - Otterville R-VI School District

... Occurs when individuals to two distinct species crossbreed to produce an fertile offspring. ...
Mock Exam 4 - Anthony Todd
Mock Exam 4 - Anthony Todd

... c. Seals have flippers that make them great swimmers but make their movements on rocks and land very cumbersome d. Rabbits that live in colder regions tend to have smaller ears than rabbits of the same species that live in warmer regions e. Cows are selectively bred to gain a higher milk yield. 25. ...
Evolutionary Science After Darwin Charles Darwin: Evolutionary
Evolutionary Science After Darwin Charles Darwin: Evolutionary

... Descent with Modification by means of Natural Selection 1) If individuals vary (in traits or characters), 2) If variations are inherited by offspring, 3) And if more offspring are born than can survive, competition (for space, food, other resources) will be intense in the struggle for existence. •A ...
Evolution
Evolution

... Darwin’s proposed mechanism of evolution Survival depends on the particular environmental conditions a species finds itself in—nature! If the environment changes, so do the populations that live there. ...
Evolution Unit Notes
Evolution Unit Notes

... •Evolution is a theory and a fact. • The theory of Evolution deals with how Evolution happens. ○ Our understanding of this process is always changing. • Evolution is also a fact as there is a huge amount of indisputable evidence for its occurrence. Rodin’s “The Thinker” ...
Chapter 14
Chapter 14

... c. What a person does during their life can have no effect on their genetic makeup other than random genetic changes from exposure to chemicals or radiation. d. Cutting the tails off mice for 100 generations will result in a strain of mice with genes for short tails. e. People who are healthy tend t ...
Natural Selection vs. Selective Breeding
Natural Selection vs. Selective Breeding

... mature rapidly ...
Darwin`s Theory of Evolution - Living Environment H: 8(A,C)
Darwin`s Theory of Evolution - Living Environment H: 8(A,C)

... propose a revolutionary hypothesis about the way life changes over time = The Theory of Evolution • Darwin used these observations to scientifically explain the diversity of life on this planet. ...
EVOLUTION
EVOLUTION

... Fossils of a species that are easily recognized. Existed for only a short period of time so it will only be found in a few layers of rock. Had a wide geographic distribution. * meaning that it can be found in many locations around the world. ...
I. The “Vice Versa” of Animals and Plants
I. The “Vice Versa” of Animals and Plants

... 3. Darwin concluded that the Earth was old enough to have allowed evolution to occur. 14.2 Natural selection is a mechanism for evolution A. Darwin made a study of artificial selection, a process by which humans choose, on the basis of certain traits, the animals and plants that will reproduce. 1. E ...
Choose the correct answer:
Choose the correct answer:

... 1- The neck of giraffe:  Lamarck believed that the early ancestors of giraffe were shortnecked.  When the grass lands dried up and only tree leaves were available some of the short-necked giraffes perished while others stretched their necks to get leaves, so, their necks became longer because of u ...
Evolution--Darwin 2016_Mitchell
Evolution--Darwin 2016_Mitchell

... -structures that have different mature forms but develop from the same embryonic tissues -have strong structural similarities between different species -adapted in different ways to help survive in different environments -provide strong evidence that there is descent from common ancestors -vestigial ...
Chapter 11: Evolution and Natural Selection
Chapter 11: Evolution and Natural Selection

... 2. It can be difficult to apply the concept to populations that do not occur together in nature It is not possible to observe whether they would interbreed naturally 3. The concept is more limited than its name would imply Many organisms are asexual and reproduce without mating For these reasons, ot ...
jeopardy - AMERICAN-HISTORY
jeopardy - AMERICAN-HISTORY

... Sharks have teeth that make them successful ...
A growing appreciation for a larger relative role of genetic drift in
A growing appreciation for a larger relative role of genetic drift in

... copy has to be turned into Dr. Feaver at the beginning of class. Late copies are not accepted. Lined paper must be used and writing must be legible. If I have trouble reading your paper, your grade on those question affected will be 0. You are highly encouraged to draft your homework assignments in ...
Ch.10.2 DR B Key
Ch.10.2 DR B Key

... Match the correct description with the correct step in natural selection. Write the letter in the space provided. ...
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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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