This chart shows the beak length of a population of finches in the Galapagos. The island was faced with a five year drought that made it difficult for birds to get water. If natural selection occurs, how would you predict the bird beak lengths to change?   A) Only those with shorter beaks would survive.     B) The population would not really change much.     C) Only those with the longest beaks would survive.     D) Those with medium-long beaks would increase most. Not Graded

Q: population of 600 scorpions was split into four populations when irrigation canals were built…

A: When irrigation canals were created across their environment, the population of 600 scorpions was…

Q: You measure the effects of a single allele (T2) on fitness in two populations of mosquito,…

A: Allelic fitness  Allelic fitness means, more fit allele more it's distribution to the population and…

Q: In a field study in a woodland ecosystem in the Serengeti region on the border of Tanzaniaand Kenya,…

A: Approach to Solving the Question: 1. For part (a), the approach is to simply add the number of…

Q: Which of the following is an advantage of sexually reproducing populations over asexually…

A: The process of the formation of new organisms from existing organisms is called reproduction. There…

Q: How does the founder effect show that Africa is where our species originated? (Hint: Think about…

A: The objective of the question is to understand how the founder effect, a concept in evolutionary…

Q: What is the relationship between changes in gene frequencies and adaptations?…

A: The question is asking about the relationship between changes in gene frequencies and adaptations.…

Q: b) Suppose that we want to model the evolution of the population of a cer- tain type of organisms.…

A: Population --  Introduction --Population usually measured in the terms of population density which…

Q: Which is NOT an example of a population bottleneck: A) The Cretaceous-Paleogene extinction event B)…

A: The objective of the question is to identify which of the given scenarios does not represent a…

Q: Choose True for yes and False for no, for each of the statements 1) The distribution of the two…

A: Given,          A,B,C species share a common ancestry but they are present in different places .And…

Q: Which of the following native Kentucky animals would most likely exhibit "K" selection? A) Black…

A:

Q: Two different species cannot occupy the same niche in the same geographic area. If they do they will…

A: Competition It is an evolutionary factor, when two species same or different occupy a same…

Q: Genetic drift    a.) All of the answers are correct            b.) Reduces genetic variation within…

A: Answer. Genetic drift is the random change in allele frequencies caused by sampling error across…

Q: The effect of environmental stochasticity

A: Answer 1 - Option C - is greater in small populations The environmental  stochasticity is a…

Q: When a population is in mutational equilibrium, which of the following is true?a. The number of…

A: Evolution is a process by which changes occur in an organism over time due to heritable physical or…

Q: A group of birds colonize an island.  Over time, they become different from the mainland source…

A: A group of birds colonize an island.  Over time, they become different from the mainland source…

Q: Explain how genetic drift caused egg hatching to decrease in the late 1980s and 1990.  b) Why did…

A: There can be various reasons for egg not being hatched.  A. Genetic drift occurs in low population…

Q: Describe how a) genetic drift, b) natural selection, and c) mutation affect the fitness of…

A: Genetic drift : It is the change in the frequency of an existing gene variant in a population due to…

Q: You work for the science division of an agribusiness that is trying to stay ahead of upcoming food…

A: Evolution is defined as a change in heritable characteristics of a biological population over…

Q: Scientists tracked the year populations of two species of bush cricket were first recorded…

A: Bush-cricket is a type of insect related to the grasshoppers, has very long antennae, and has a…

Q: Changes in allelic frequency that leads to novel populations is an example of

A: Changes in allelic frequency that leads to novel populations is an example of microevolution.

Q: You conduct an exercišé iñ the conditions under which survival of snails is selective-that is,…

A: The answer to the question is: Yes, because there was a change in the mean shell thickness.

Q: A population of 600 scorpions was split into four populations when irrigation canals were built…

A: Introduction :- Genetic drift is a random fluctuation in the frequency of alleles in a population…

Q: The primary mechanism of sympatric speciation is a)dispersal and colonization of new environments

A: When population of species share his same habitat to different species called as a sympatric…

Q: A small number of animals moves away from a large ancestral population on the continental mainland…

A: The species diversity is the number of species present in a particular area. The species diversity…

Q: An extinction vortex describes a) changes in a population’s gene pool that lead to a loss in…

A: Answer- a) changes in a population’s gene pool that lead to a loss in fitness across time

Q: 18. (07.07 HC) Due to its location, Hawaii does not have very many land birds. The Hawaiian…

A:

Q: (c) The Figure given below shows a population of guppies, living in an aquatic environment with co:…

A: Natural selection is a process of adaptation amongst many living organisms. They use this type of…

Q: What is Microevolution?

A: Evolution is the change from one form to another form through a particular sequence.  The change up…

Q: Which of the following is NOT considered a genetic isolating mechanism?   Question 2 options:   a)…

A: The question asked here, is to find which of the option is not a genetic isolating mechanism. For…

Q: Both mutation rate and population size influence genetic diversity, but they do so to different…

A: Genetic diversity is a term that refers to the range of traits that are different from one another…

Q: Much research on extinction has focused on small populations, which are vulnerable for numerous…

A: Extinction Vortex is a term that is used to define the process which the declining population of an…

Q: Which of the following lists events in the proper order to reflect how natural selection works in a…

A: Answer. Natural Selection Selection is a composite of all the forces that causes the differential…

Q: ping in birds is controlled by two alleles (C and c) at a single genetic locus. Birds with genotypes…

A: Paralogs are homologous genes that are related or produced by duplication event within a genome…

Q: A population of lizards colonizes a region and feeds on small arthropod species. Over time, a small…

A: Speciation is the process through which new species emerge from the existing ones. Speciation may…

Q: Species A experiences a mutation that produces a favorable allele to avoid predation by species B.…

A: Evolution is defined as a process in which gradual changes occur in species over long time. It leads…

Ecological adaptations

An ecological adaptation is any morphological, physiological, or behavioral trait of an organism that allows it to survive and reproduce in a habitat or ecosystem. Adaptation is a biological mechanism by which an organism gradually gets more acclimated to its surroundings.