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 8If 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 9What 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 enoughenvironment, that it develops new adaptive traits different enough to make it impossible for it to reproduce with its ancestral population.

An "ecosystem" is a natural community of living beings that deals with the external environment and…

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. 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.

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. 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.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Which of the following forms of reproductive isolation illustrates a prezygotic barrier to gene flow? O Species A forms hybrids with species B and the hybrids are able to breed back with either of the two parent species to produce healthy fertile offspring. O Two closely related birds, the lazuli bunting and indigo bunting, sing similar songs to attract mates and even though human ears can not distinguish them the females never make wrong choices in choosing who to mate with. O Two species of turtles living in a large lake have different ecological requirements and never interact. O Several species of corrals in a Honduras corral reef release gametes about the same time but inter- specific attraction of gametes does not occur. O All but one of these illustrates a type of prezygotic barrier to gene flow.
There is an outbred population of mice living in a farmer’s field. Mutations occur at a genecalled nurseryrhyme that cause a totally recessive form of blindness (h=0). These blind micedo not survive to reproduce because the farmer’s wife cuts off their tail (and other bits) witha carving knife. Surveying the field for baby mice you find that 3/10,000 mice are blind.A. Assuming that the population mates at random, what is the mutation rate of blindnesscausing alleles?B. Following more careful study you now find that there is actually a 20% reduction in theviability of heterozygotes for these mutations. What would you now estimate as themutation rate for this gene?
Which of these statements regarding populations is/are true? (Choose all that apply) O Mature males and females of a population can interbreed with each other. OPopulations are sometimes geographically isolated from other populations. O Biological species are made up of populations. Members of a population tend to be genetically more similar to each other than to members of other populations. O Populations have genomes, but not gene pools.
A population of 100 moths has a gene that codes for wing color. Gray wings (G) are dominant to white wings (g). In this population, 20 percent of individuals are homozygous dominant for the trait, 20 percent are heterozygous, and 60 percent are homozygous recessive. Calculate allele frequencies for this population. State whether the population is in Hardy-Weinberg equilibrium, and justify your answer. BIUE E 20 F3 D00 OD0 F4 F6 F2 $ % 2 > 6
Imagine a remote island inhabited by a population of lizards. To determine if this population is in Hardy-Weinberg equilibrium for gene X, which of the following conditions must be met? The lizard population should be at least 100 individuals and close to other large populations to avoid genetic drift. No selection, meaning that all individuals have an equal chance of survival and reproduction No gene flow due to migration between the island and other lizard populations Random mating among lizards without any preference to gene X No measurably significant mutations occurring in the lizard population at gene X
In a population of lizards, color is genetically determined. The current population has two two phenotypes: blue and yellow. Which of the following scenarios could result in evolution by migration? O A disease indiscriminately reduces the population by 90%. Birds are better able to see and therefor prey on blue lizards The population is joined by individuals from a nearby population that has an allele for a red phenotype. Females preferentially mate with individuals exhibiting the blue phenotype.
For questions 14-20, fill in the blanks using the word bank below. Fitness i Mejosis Mutations Evoludon Selected variation Competition allele frequency pressure 14. According to Darwin's theory of natural selection, every population has heritable their traits. mitosiss 15. These differences are caused by meiosis and 16. Predators, competition, changing environments will exert on individuals in a population. 17. Some traits will be beneficial and increase an organism's 18. Eventually favorable traits will be for, while hamful traits will not. 19. This will cause a shift in the of a population over time. 20. This shift in the genotypes and phenotypes of a population is known as low is a diagram demonstrating the effects of antibiotics on a population of bacteria over time. Draw a tch each box with its correct caption. 0. 000 24. 00 23. 22.
The graph below represents the number of brown and green beetles collected in a particular ecosystem Change in Coloration of Beetle Population Green beetles Brown beetles Time (years) What is the change observed in the number of green and brown beetles in the population most likely due to? (15.13) O natural selection O selective breeding O a common ancestor O gene manipulation //olamiami.performancematters.com/ola/ola.jsp?clientCode=flMiamiDade# 4:10 PE O Type here to search 3/11/20 Number of Individuals
Suppose a species of bird called the red‑crested warbler has a plumage length that is controlled by a single gene. The P l m allele produces long plumage and is dominant over the p l m short plumage allele. One population exists in North America (NA) and a separate population exists in South America (SA). The trait is in Hardy–Weinberg equilibrium in each population. An island nature preserve brings in 102 NA warblers and 352 SA warblers. Out of the 102 NA birds, 55 have long plumage. Out of the 352 SA warblers, 75 have long plumage. After the birds from the combined populations mate randomly, the island population produces 1000 offspring. Calculate the number of these offspring that are expected to have long plumage. Round the number to two significant figures. number of offspring with long plumage.
Lyons et al + -- -AN TATAVAN 010 456 Update : Apps M Gmail YouTube Маps Far fewer black beetles woul V Which of the five conditions of Hardy-Weinberg equilibrium would be violated in this situation? V [ Select ] Genes are now mutating. Mating is no longer random. The population size is now much larger. The population would experience natural selection pressures. There is now immigration of individuals into the population. Question 2 1р Color in Mclver beetles is determined by two alleles at one gene locus. Mclver beetles must have a heterzygous genotype (genotype A1A2) in order to have a brown color phenotype. Calculate the frequenc y of the brown beetles in the nonulation if the frequenCY of th e A1 allele is
Amount of NH3 nces ne In a population of pansies, the red allele (CR) is incompletely dominant to the white allele (Cw). If the frequency of the red allele is 80%, what is the frequency of pink flowers in the population?* ds 1 and 2 20% Highschool MP3, 0.20 0.80 0.32 Fri O 0.16 When Charles Darwin visited the Galapagos Islands, he observed the marine OOO
Natural selection acts on phenotypes within a population. As a result, over time, the phe- notypic frequencies in a population can change. The graph below shows how the pheno- type of a population changed after selection occurred. Number of Individuals B Value of Phenotype A graph that shows how phenotypic frequency changed before and after selection. с population after selection Which of the following scenarios would most likely result in the phenotypic change shown in the graph above? D original population A A population of rats live on the ground and in short trees. A tree-dwelling snake that preys on the rats is introduced into the area. Warming of the arctic tundra reduces the average snow cover that lighter-colored arctic foxes rely on for camouflage. Darker-colored arctic foxes are better suited to the ex- posed moss and grass habitat. Robins that lay smaller-than-average clutches of eggs produce fewer viable offspring, while larger-than-average clutches of eggs result in…