Fixity of Species refers to… Group of answer choices A-the theory that species exist at a fixed location along a physiological continuum B-the fact that species are defined by fixed adaptations to their direct environment C-the theory presented by Thomas Malthus that population densities of any given species are most affected by mortality and fertility rates D-the pre-darwinian notion that species, once created, can never change E-the late 19th century concept that because mendelian traits are fixed they are evidence that variation within and between species are designed by God specifically for those species

Fixity of Species refers to… Group of answer choices A-the theory that species exist at a fixed location along a physiological continuum B-the fact that species are defined by fixed adaptations to their direct environment C-the theory presented by Thomas Malthus that population densities of any given species are most affected by mortality and fertility rates D-the pre-darwinian notion that species, once created, can never change E-the late 19th century concept that because mendelian traits are fixed they are evidence that variation within and between species are designed by God specifically for those species

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter53: Introduction To Ecology: Population Ecology

Section: Chapter Questions

Problem 15TYU

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« > A Moving to another question will save this response. Charles Darwin was the first person to propose: That the earth is older than a few thousand years. O A mechanism for how evolution occurs. A mechanism for evolution that was supported by evidence A way to use artificial selection as means for domesticating animals and plants.
READ THIS: Notice that natural selection does not refer to individuals changing. Kath Trequency of adaptive heritable traits in a population changes as a result of natural selection. REQUIREMENTS FOR NATURAL SELECTION TO OCCUR: 17a. Assuming that both types of pom-poms are present in the population, what do you think would happen to the pom-pom population if the black forest experienced a prolonged drought so all the trees died and the habitat became red grassland? 17b. Next, think about an alternative scenario. Suppose that natural selection over many generations had eliminated all the red pom-poms in the black forest habitat so only black pom- poms survived. After that, a prolonged drought resulted in this habitat turning into a red grassland. Would natural selection for pom-pom color occur? Why or why not? 17c. The above scenarios are showing that in order for natural selection to occur must exist within a trait.
Ecalogical seleation Sexual selection What is ecological selection? How is it different from sexual selention torsurviva - Selection by the opposite sex - pormpetitive ad vantage Competition within males females predator avoidanoe selection? What kinds of traits result from ecological selection? Erirae Constraints on adaptive pertecton (optmali Why doesn't natural selection produce optimally adapted organisms? Oren ldaa NOT cop Adigsdon re om civep eb he numet n ognawihrntruclure and e . r e e Tw u n Ecological selection oeed .ha o hore cs Scanned vwith CamScanner
What is variation in evolution-if heterozygosity is reduced,what happens to the potential for evolution?the phenotype(genotype)of the population is due to the mosaic of random and directed processes.some of these have to do with history.some related to adaptation etc.as completely as possible discuss the role of the chance and direction in variation in evolution and in determinijg the phenotype of a population
the phyenotype of a population is due to mosaic of random and directed processes.some of these have to do with history some are related to adaptation,etc.as completely as posiblr,discuss the roleof chance and direction in evolution and in determing the phenotype of POPULTION
A reasonable definition for a species is: O A distinct kind of animal. O A group of living things with functionally similar traits, for example, all creatures that can fly. O A group of living things with taxonomically similar traits. O A group of taxonomically similar living things in which all healthy members can interbreed and produce fertile offspring. QUESTION 8 If microevolution is any change in the gene pool of a breeding population, then macroevolution is: O A change in the genetic makeup of group that eventually results in the development of a new species. O The mass exctinction of old species to make way for new. O Changes in the physical environment at large. O When microevolution happens on a large scale. * QUESTION 9 What is the primary cause of speciation? O Extinction. O Overpopulation. O Environmental change. O When a breeding population becomes reproductively isolated from its ancestral population, for a long enough time, in a different enough environment, that it…
What is the role of variation in evolution. If heterozygosity is reduced, what happens to the potential for evolution?. The phenotype and genotype bof a population is die to a mosaic of random and directed processes, some of them have to do with history ;some are related to adaptation, etc. As completely as possible, discuss the role of chance and direction in evolution and in determining the phenotype of a population
Choose the assumption of the Hardy-Weinberg equilibrium that best applies to the following statement. "Random changes of DNA can lead to new genes which code for proteins that give an organism a new adaptation." O Random Mating O No Gene Flow O Large Population Size O No Natural Selection O No Mutation
. Some scientists vigorously rejected Darwin’sideas when On the Origin of Species was published. Richard Owen (1860), perhaps the mostrespected biologist in England, wrote (amongmany other objections): “Are all the recognisedorganic forms of the present date, so differentiated, so complex, so superior to conceivableprimordial simplicity of form and structure,as to testify to the effects of Natural Selectioncontinuously operating through untold time?Unquestionably not. The most numerous livingbeings … are precisely those which offer suchsimplicity of form and structure, as best agrees…with that ideal prototype from which…vegetableand animal life might have diverged.” Howmight Darwin, or you, argue against Owen’slogic?
Which of the following is likely to be most important in the evolution of two species from one population of another species? O some kind of barrier that physically divides the original species into two sub-populations a change in the environment such that one sub-population experiences differential natural selection O reduced performance of gametes (e.g., pollen) in crosses between sub-populations O reduced fitness of offspring resulting from crosses between sub-populations genetic divergence and cessation of gene flow between sub-populations
Which of the following statements is not true about the concept of natural selection? Group of answer choices A-Geographical isolation contributes to the formation of new species as individuals begin to adapt to different environments B-Natural selection explains the increase in the yield of kernels per corn plant over the last several thousand years C-Infers that later generations may be distinct from ancestral ones, or a new species can appear D-Selective pressures cause distinct species to develop E-Suggests that over long periods of geological time, successful variations accumulate in a population
What is the role of variation in evolution-if heterozygosity is reduced, what happens to the potential for evolution? The phenotype and genotype of a population is due to a mosaic of random and directed processe.some of these have to do with history; some are related to adaptation, etc. As completely as possibl, discuss the role of chance and direction in evolution and in determining the phenotype of a population.