Evolution Questions and Answers

A population of sheep is in Hardy Weinberg equilibrium The allele for white wool W has an allele frequency of 0 19 What is the allele frequency for black wool w a 0 036 b 0 81 7 c 0 15 d 0 04

Data Table for Question 5 of the Analysis Questions Class Results Beaks That Were Present at the beginning of the activity Successful at feeding in Round One on the original island fed on small seeds did not need to migrate Not successful at feeding in Round One on the original island fed on small seeds had to migrate to the new island Successful at feeding in Round Two on the original island fed on small seeds Successful at feeding in Round Two on the new island fed on large seeds Not successful at feeding in Round Two on either island species dies out Successful at feeding in Round Three on the original island fed on small seeds Successful at feeding in Round Three on the new island fed on large seeds Not successful at feeding in Round Three on either island species eliminated Number of Beak Types 4 2 2 Packet page Characteristics of Beaks Size and Shape Small to medial Narrow and Painter bunt and wide Small to median marred Pointed and wide onnel is illegal medium less Painted ordwide Small to medium Novios Pointed and wide medium size le Painted medium less pointed and blunt

Why is genetic variation so sought after and important when organisms reproduce A It ensures that the organisms will survive because they won t all die off from the same thing B It is important in cloning the organisms C It ensures that DNA is exactly replicated in the offspring

All of the following are evidence that scientists argue supports the claim that birds descended directly from therapod dinosaurs EXCEPT Behaviors such as colonial nesting forming herds parental care and mating displays OHollow thin walled bones Forelimbs modified for flight Clavicles collarbone fused to form a furcula wishbone

Your textbook notes that phylogeny estimation in Hominins can be difficult because a challenge that paleoanthropologists face is the extensive homoplas in hominins What does this mean O Hominin fossils display mosaics of derived and primitive traits O Hominin fossils show patterns of very rapid evolution O Hominin fossils show patterns consistent with punctuated equilibrium

Explain how analysis of DNA sequences gives evidence for evolution

Why are transitional fossils so important for piecing together a more comprehensive fossil record

Explain how fossils are evidence for evolution

What is the difference between a homologous structure and an analogous structure

Compare and contrast artificial selection and natural selection

Does natural selection act on the genotypes or the phenotypes of an organism Explain your answer

Ariation in population 4 2 Ancestral crabs have very small pincers on their front legs and modern day crabs Dock have very large pincers which are used by the animal for defense How would Darwin using the five steps above describe the change in crabs over time goc 3 How would Lamarck describe the same change in the crab s anatomy 4 What are the three things that are needed to produce a new species 5 Describe four different kinds of isolation Why is isolation so important in the formation of new species 6 What is the difference between Darwin and Gould with respect to the time it takes to produce a new species Explain Gould s point of view 7 Natural selection acts directly on the phenotype of an organism Explain what this statement means 8 What are the two different ways to date a fossil Describe the methods used in both 9 What does the Hardy Weinberg equation demonstrate for any gene in gene popl 10 What five forces can change the results of the Hardy Weinberg equation the five forces of evolution

The current classification system is extremely dynamic In 1753 Linnaeus classified all organisms into two kingdoms Nearly a century later it was expanded to a three kingdom system Currently we use a six kingdom system for classification Which statement best explains why the classification system keeps changing The classification system changes because evolution continually produces new unique organisms A B D Scientists re classify organisms each year based on the opinions of the current preeminent scientists in the taxonomic field Advances in scientific technology used in science research reveal new evolutionary relationships between organisms which lead to modifications in the classification system The creation of mobile technology such as the iPhone have led to better communication with scientists which have led to new classification systems Eliminate

List 1 characteristic that make your species unique or easy to identify These can be writ ten as a list Sentence Starter My species is easily identified by

Many types of orchids may be found growing in the same part of a rain forest However each orchid briefly opens its flowers to be pollinated on a different day This is an example of which type of reproductive isolation O A Functional isolation O B Behavioral adaptation OC Geographic isolation OD Temporal isolation

Which modern animal is most closely related to the fossilized animal shown in the image A B C

The image shows a fossilized animal The fossilized animal is likely an ancestor of which modern animal O A Crocodile OB Salmon O C Parrot O D Mushroom

Which two statements provide evidence that supports the endosymbiotic theory A Chloroplasts and mitochondria are about the same size as prokaryotes B Chloroplasts and mitochondria share the same DNA as the cell s nucleus C Mitochondria and chloroplasts have both inner and outer membranes D Chloroplasts and mitochondria use the cell s ribosomes to replicate their DNA

The classification of organisms has changed greatly over the past 230 years In the 1700s organisms were grouped into two kingdoms Today scientists recognize six kingdoms of living things What is the best reason for the change in the classification of organisms over time A B O D New unusual organisms have been discovered There are more different kinds of organisms now Scientists have found genetic differences among organisms Similarities among organisms have increasingly been used for grouping

Why is it an evolutionary advantage to have genetic variation within a population A It increases a population s chance of surviving predators disease and changing environments B It increases birth rates making the population more likely to survive C It causes more predators to be born which increases the death rate and prevents overpopulation D It is not an evolutionary advantage individuals get along better when they have more in common

What are the 4 main principles of natural selection

Explain the term survival of the fittest

Differentiate between a variation and an adaptation

What accounts for the variation Darwin observed among island species in the Galapagos

What did Darwin learn from the fossils that he observed on his voyage

How could a changing environment cause new species to emerge

By how much will the frequency of an allele change due to mutation per generation if the current frequency is 0 1 and the mutation rate from other alleles to this one is 10 4

a minimum of 100 words After you respond to the prompt view and respond to at least two classmates posts in a minimum of 50 words each Please note You must respond to the prompt before being about to view other student s posts Although there are no right or wrong answers and the discussion board is scored on participation please make contributions of substance in order to gain the most from the discussion Understanding Self Concept Select three of the following items and provide answers to them Then respond to the questions afterward Note Only include what you are comfortable sharing with the class I am happiest when I love to I hate to I desire to I desire not to I am most proud of I most fear I am most comforted by I enjoy I am most relaxed when I most value I am most passionate about I am most driven by I am most saddened by I am most excited by I am most frustrated when Would you have answered these questions similarly one year ago Five years ago How have your

Q6 In the following graph provide a proper label for the area on the x axis marked as Favorable Phenotypes in a Population Average Frequency y axis x axis Q7 Draw sketch a new line curve that best represents disruptive selection You can create a new chart if necessary

empts 0 Allowed Attempts 1 ilable May 10 at 12am May 26 at 11 59pm 17 days me recessive individuals in a population is 36 out of 100 What is p q homozygous dominant viduals and heterozygous individuals of the population Previous Next

Table 10 1 Global Human Population Size from 10 000 BCE to the late medieval period Year 1000 400 1 CE 10 000 8000 6500 5000 3000 BCE BCE BCE BCE BEC 5 7 5 12 5 14 BCE BCE 50 162 285 Population size 5 millions 2000 BCE 27 1200 CE 405 Table 10 2 Global Human Population size from the early Renaissance to 2011 1500 1804 1927 1960 1974 1987 1999 2011 2025 2050 443 1000 2000 3000 4000 5000 6000 7000 8000 9000 Year Population size in millions Summary Reflection What have you learned about how human population growth has changed over the last 12 000 years Why has population growth changed

A good insect management technique is to grow alternate host crops around the boundaries of your field so that insects will move out of the crop and overwinter in the alternate host True False

Uranium 238 has a half life of 4 4 billion years and is not therefore very useful to evaluate the age of a 3 thousand year old Egyptian papyrus scroll True False

This is defined as a shared derived characteristic which defines a group clade O Pleisiomorphy O Synapomorphy O Homoplasy All of the above

The presence of a single nucleotide difference between two taxa can be used to establish a branch poin node within a phylogenic tre O True False

In a phylogenic tree which of the following terms should describe a single clade with a clear common ancestor O Monophyletic O Paraphyletic O Polyphyletic None above

Which of these is the earliest fossil evidence of Life on Earth O The Radioactive Carbon Isotope Carbon 14 O Mollusk Shells O Stromatolites Petrified Wood from the Late Rorminn

4 is any change in the inherited traits of a population that occurs from one generation to the next e over a time period longer than the lifetime of an individual in the pop O Biological Evolution O Genetic Drift Natural Selection O Sexual Selection

Antigenic shifts in viruses are dangerous because O They always increase the rate of transmission of a virus from one individual to another O They switch their surface proteins antigens every few days and so are able to evade the immune system like Chagas African Sleeping Sickn O They present a new set of antigens very unlike those surface proteins for which your immune has been readied O They are not dangerous at all Antigenic shifts should be ignored because they are historically inconsequential for humans

Why did the middle earbones need to change shape in Cetaceans whales and dolphins To adapt to a high pressure environment To be able to speak more loudly O To catch prey more easily due to faster movement O To alter the tone of their vocal apparatus as it returned to its formann

What is the Era that begins with the first signs of life is filled with presumably only Prokaryotic organsims and ends when the first signs of Eukaryotic life begin O The Silurian Period The Ediacarian Period The Archa

Which of these early naturalists developed a system of classification of organisms that is still in use today O William Smith O Georges Buffon O Carl Linnaeus

The ratio of Oxygen isotopes in currrent whales ancient whales and their ancestors lets us know O when the may have switched from freshwater to salt water O when they became able to breath water O when they made the transition into an aquatic lifestyle none of the above

This early proponent of evolution had difficulty explaining the large gaps between Classes of Organisms because his method did not provide a mechanism for extinction Buffon O Lamarck O Wallace O Steno

Darwin did not recognize the species differences himself initially but instead was shown that his finches belonged in different species by Stephen Gould O True False

Which of the following is NOT a misconception about Evolution Biological evolution involves inherited change within a population O Evolution always leads to perfect adaptation to the natural world O Evolution violates the second law of thermodynamics Evolutionary Biologist have characterized the entire evolutionary record of life on Earth

The last name of the researcher who co developed the Theory of Evolution via Natural Selection at the same time as Charles Darwin and thus threatened to scoop Darwin if he didn t publish was O Lamarck O Bufffon O Wallace

Humans Seals and bats all have an upper pair of appendages arms which contain a first bone projecting from a shoulder thoracic cage called the humenus a pair of bones called the radius and uina following a joint with the humerous to ulna meet extend metacarpals and then phlanges fingers The fact that this bone arrangement is similar among these three types of mammals suggests that these features are O Convergent Analogous O Homoplasies Homologous Reversals

The first chemical evidence of life namely evidence of carbon fixation taking place occured how long ago roughly O 6 5 billion years ago O 4 5 billion years ago O 3 8 billion years ago O2 7 billion years ago

The discovery of which bone helped link Whales to animals like Hippos Deer and pigs O Scapula shoulder bone O Skull O Mandible jaw bone Astralagus knee joing hinge