feathers, which range from dull brown to bright blue. Juvenile birds with dull brown feathers are not attacked by adult birds and are able to obtain high quality territories and reproduce more. Juvenile birds with bright blue feathers are more attractive to mates and reproduce more when they become adults. However, birds with intermediate plumage are often attacked by adults and usually fail to reproduce. This is an example of what type of selection? Stabilizing Directional Disruptive Frequency-dependent Artificial

Q: A preserve contains the last population of the very rare desert pupfish which is only found in one…

A: * Given that thisnis the last population of desert pupfish with two colours silver and black. *…

Q: If natural selection is the only force acting on this population from generation to generation, what…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: In most species, which sex is more likely to be doing the "selecting" sexual selection? * Males…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Hedrick et. al found that wolves in Yellowstone National park, which are gray or black in color,…

A: Selection is a procedure which can be natural or artificial. Natural selection is the process…

Q: In general, males experience stronger sexual selection than females.

A: Ans- True Explanation- There can be two circumstances of sexual selection. One is the preference of…

Q: Which of the following is a form of a heritable trait that enhances an individual’s fitness?…

A: Among the given options -  Option A) Adaptation is considered as the behavioural or a physical…

Q: Number of Attacks Strawberry poison-dart frogs have different skin colors within their population.…

A: Organisms evolve to adapt to their environment in order to increase chances of their survival and…

Q: Ground squirrels will often give a warning call when they see a predator, altering the other ground…

A: Natural selection is the process through which populations of living organisms adapt and change.…

Q: Which of these interactions are examples of sexual selection? Select all that apply.  - Female…

A: Natural selection is the driving force for evolution.

Q: The Fischer model of the 1:1 sex ratio predicts that natural selection favors parents who produce…

A: Introduction  Evolution is the gradual change in the inherited traits of biological populations over…

Q: Sexual selection is kind of natural selection in which      characteristics related to mating…

A: Charles Darwin laid the inspiration for all modern work on sexual selection in his seminal book The…

Q: Using the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g.…

A: The altruism behavior of an animal is that behavior when it benefits the other animals at the cost…

Q: This form of sexual selection results from competition among members of one sex for access to mating…

A: It is a multiple choice question.

Q: In chapter 3, Dawkins suggests that selection is powerful yet unconscious of its actions ("without…

A: INTRODUCTION Richard Dawkins suggests that natural selection take place at genetic level of the…

Q: In most species, which sex is more likely to be doing the "selecting" in sexual selection? * Males…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Which of the following is likely to be observed if there has been a strong positive selection on a…

A: Positive selection decrease genetic variation by Using models of the selective sweeps to estimate…

Q: Which of the following types of non-random mating DOES result in evolutionary change on its own?…

A: The process of formation of new species is known as speciation. Speciation begins with a change in a…

Q: Which type of natural selection is this an example of? -stabilizing selection -sexual selection…

A: Natural selection  A kind of evolution that is based upon nature. The nature select the organism…

Q: Which of these interactions are examples of sexual selection? Select all that apply.   A change in…

A: Natural selection is the process in which the nature selects the fittest of the species of organisms…

Q: Male California sea lion mating success is determined by the number of mates they can acquire.…

A: The maintenance of territory is very much important in case of increasing their fitness in most of…

Q: A population has several generations of random mate choice followed by a generation of nonrandom…

A: Given: Need to choose the generation of nonrandom mate

Q: While you are roller-blading around Lake Artemesia in Greenbelt, you notice a fascinating bark…

A: Genes contain coded genetic information in the form of genes. Every gene is made up of pair of…

Q: The equilibrium frequency of a deleterious allele under mutation-selection balance increases as:

A: Answer: EQUILIBRIUM  FREQUENCY is the frequency or point at which no more changes occured in allelic…

Q: Three modes of selection: The Directional Selection bigger is always better, Stabilizing Selection…

A: A disruptive selection is a mode of natural selection method where the extreme trait characteristics…

Q: Abedus herberti, a species of water bug, males carry eggs on their backs from each copulation event…

A: Sexual selection is a type of natural selection. Natural selection is an evolutionary process where…

Q: A) Directional Selection In directional selection is distribution over time. What has happened to…

A: Natural selection can bring the adaptive evolution . It will increases the frequency of allele that…

Q: Types of Selection Match each situation to the type of selection most likely to occur. NOTE: If you…

A: In this type there is a selection of both the extreme ends of the phenotypic spectrum the correct…

Q: The males of some bird species grow large talons on their legs to help them fight against other…

A: Selection is a biological or natural phenomenon in which nature decides which type of organisms will…

Q: Suppose there is a type of deleterious mutation in a particular human gene that causes death very…

A: There are few important points : We know that heterozygous deleterious mutations can give rise to…

Q: ntrasexual selection involves competition among one sex (typically males) for mating access to the…

A: There is a stark difference between intrasexual and intersexual competition. These differences are…

Q: Which of these interactions are examples of sexual selection?  *Pick All Green butterflies are…

A: Sexual selection is a form of natural selection. This involves the development of traits that helps…

Q: In sexual selection, the selective pressure acting on the population is... an external environmental…

A: Question- In sexual selection, the selective pressure acting on the population is... a) an external…

Q: An individual bird may behave apparently altruistically in a way that decreases its own fitness (by…

A: An altruistic behavior provides benefit to other organisms and the organism that provides benefit…

Q: longest feather). You measure wing-length in a population of these birds and find a mean wing-length…

A: a). The predicted mean wing length of the offspring of the survival birds is 16 cm. These birds have…

Q: Which statement accurately complete the following sentence: “If selection favors a new allele within…

A: "Evolution" is responsible for species variety. The evolution of various species in an area causes a…

Q: Gene flow is: the process by which allele frequencies remain the same, largely through migration and…

A:

Q: How many animals have dominant allele? The aggressive behavior in cats is controlled by a…

A: Dominant allele is an allele that dominates another. It is the only one expressed in the phenotype…

Q: Natural and sexual selection both lead to evolution, but these processes can work against each…

A: Selection, is basically the preferential survival and reproduction or preferential elimination of…

Q: The complete set of genetic information in all individuals within a population     allele frequency…

A: Genetic information in almost all organisms is stored in the form of DNA. This genetic information…

Q: Natural selection acts upon ____________________________, evolution upon…

A: Since you have asked multiple questions, we will answer only the first two questions for you. If you…

Q: fantastic coloration and behavioral displays in the birds of paradise that we watched in class were…

A: The development of some different morphology  or physiology in the form of physical traits that are…

Q: Describes how equilibrium is not achieved in a population when factors (any factors) such as…

A: A populace is some of the multitude of living beings of similar gathering or species who live in a…

Q: Which of the following terms are used to apply ONLY TO SELECTION, and never to just evolution.…

A: the cost or benefit according to natural selection is outweighed by the benefit of sexual selection.…

Q: Assume you are studying a species of slug where the eggs are fertilized and transferred to the male.…

A:

Q: Suppose there is a deleterious mutation in some human gene that causes loss of function very late in…

A: Mutations are very common and they can happen in any strand or in any part in the genome if they…

Q: The relative fitnesses of A;A. A,Az and A2A, are 0.5. 0.8, and 1 respectively. What is the expected…

A: the relative fitnesses of A1A1, A1A2, and A2A2 are 0.5,0.8and 1 respectively. what is the expected…

Q: Male sunfish engaging in sneaker copulation was still an example of intrasexual selection even…

A: It is a multiple choice question. Females chose parental males more than sneakers.

Q: Two males are fighting for territory that will increase the probability of mating success. Which…

A: Natural selection favors organisms with high reproductive success and adaptability. Sexual selection…

Q: a gene black (B) and red (R), and the alleles exhibit co-dominance. potted The gehe has tW6 alleles,…

A: It is almost impossible to totally eliminate recessive alleles from a population because if the…

Q: Select all of the answers that correctly describe genetic drift. a random evolutionary mechanism…

A: Random change in allele frequency due to migration or death of population  is called genetic drift.…

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.