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EBK BIOLOGY
5th Edition
ISBN: 8220100667978
Author: Maier
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 9LTB
Similarity in skin color among different human populations appears to be primarily the result of________
- natural selection;
- convergent evolution;
- which biological race they belong to;
- A and B are correct;
- A, B, and C are correct
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Students have asked these similar questions
Evolution is a process of___
in a population through___
variation over___
Evolution involves___
and___.
Which of the following statement about the Theory of Special Creation (TSC) is correct?
-In contrast to evolution, TSC believes that all the estimated >100 million species on earth were created individually and separately.
-TSC also states that, since their creations, these species have remained the same forms without much change.
-For TSC, only a very short time has elapsed since the creations of all the species on earth.
-TSC does not believe that these millions of species shared a common ancestor.
-All of the above
Please help with the following prompt using as much details as possible.
"One argument that is often made to invalidate evolution by natural selection is that some features of an organism are so complicated and need to work together in order to precisely function that it is impossible for such structures to arise from simpler ones by the random processes of mutation and selection: complicated design requires a designer. Using evidence from real organisms, explain how a complicated structure can arise from a simpler ancestral feature. You can use either an anatomical feature or molecular one."
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- Natural selection acts upon ____________________________, evolution upon _______________________________. What is the gene pool and how does natural selection act upon it? If a version of a gene confers an advantage to survival and reproduction, that version of the gene will be favored by natural selection and we can expect the frequency of that gene to ______________________ within the population over time. Versions of the gene that do not confer an advantage (or confer a disadvantage) should become _______________ prevalent . This generation to generation change in the gene pool is called ________________________. Changes to the genetic makeup of a population and the individuals within it can arise via two mechanisms. List and describe both. Both of these processes are ________________________________. Once created, new combinations of genes will be acted upon by _________new alleles_______________________. How is Darwinian “fitness” different than the typical definition used in…arrow_forwardNatural selection results in the adaptation of organisms to the circumstances of their way of life and their environment True or Falsearrow_forwardWhich of the following examples (some from class) are examples of evolution by natural selection? Choose all that apply. (1 or more are correct) Group of answer choices A_Evolution of rock pocket mice population to blend in with dark lava environment B_Evolution of high prevalence of disease alleles of an endangered species whose habitat was quickly destroyed to less than 5% remaining C_Evolution of high prevalence of sickle cell allele in areas with endemic malaria D_Evolution of a small population where most of the individuals with a red-hair mutation were killed off by a stormarrow_forward
- "Natural selection is the only mechanism of evolution." Please correct this statement in a meaningful wayarrow_forwardthe evolutionary relationship between mode O Humans are descended from chimpanzees O Humans and chimpanzees had a common ancestor several millior ears ago Humans and chimpanzees had a common ancestor several million years ago; sinc Chimpanzees are more closely related to gorillas than they are to humans QUESTION 2 Which of the following statements about hominins is FALSE? ALS Each hominin species on Earth was directly descended from the species that preced Multiple hominin species lived at the same time The genus homo arose about 2.5 million years ago We have now discovered a vast number of hominin fossils, allowing us to trace the e QUESTION 3 Which of the following are ways in which early hominins differed from apes? (select alarrow_forward"Evolution is always really, really slow." Please correct this statement in a meaningful wayarrow_forward
- Fossils of an extinct giant sloth were found to be similar to a smaller species of sloth presently inhabiting the same region. This similarity could be best explained on the basis of which of the following? * Modern forms have evolved from earlier forms Independent assortment no answer Principle of use and disuse Inheritance of acquired traits Which of the following organisms is most closely related to each other? * MITOCHONDRIAL DNA CODES Organism DNA Codes American black bear ATT GGA GCA GÁC TIA Giant panda ATT GGC AСТ ААТ СТА Red panda АTT GGA AСТ ААС СТ Raccoon АТC GGA TсТ ААС СТ American black bear and giant panda Red panda and raccoon no answer Giant panda and red panda O Raccoon and American black beararrow_forwardMeaningful evolution occurs when __________. ○ a heritable trait affects survival and fitness ○ a heritable changed trait gives an organism a fitness advantage ○ a changed trait gives an organism a disadvantage ○ environmental factors changearrow_forwardWhich of the following statements about evolution is incorrect? Evolution occurs through natural selection Evolution is a gradual process that occurs over time in populations. Evolution is a goal-oriented process that aims to create perfect organisms designed to handle what the future environment might throw at it. Evolution is influenced by genetic variation within populationsarrow_forward
- There is no such thing as truly direct evidence in evolution. Because of the long time spans, we can never really observe the process of evolution. True Falsearrow_forwardWhich of the following statements regarding evolution is FALSE? evolution is a relatively slow process Oall of these statements are TRUE evolution operates at a variable speed transitional forms appear during periods of rapid evolutionary change evolution operates over the course of multiple generationsarrow_forwardWhich the following statements about Darwin's theory of natural selection is true? O In order to reproduce more successfully, an individual must evolve so that it adapts to its environment. The natural environment consistently causes variation of certain traits in the population. O Individuals with inherited traits that are better suited to the local environment are more likely to survive and reproduce than less well-suited individuals. Natural selection, by its cumulative effects over long periods of time, could have caused random changes in ancestral species, thus giving rise to two or more descendant species.arrow_forward
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