A few birds fly over a large mountain and begin breeding with the lighter colored bird population on the other side. what type of Mechanism evolution is this -  Natural Selection Genetic drift Gene Flow Bottleneck Effect Founder Effect Sexual Selection

Q: Darwin observed that members of a population vary in their traits. We now know that this variability…

A: Charles Darwin, the author of Origin of Species' was born naturalist. He is known for the most…

Q: A horse and a donkey can make a mule, but a mule cannot reproduce. Therefore, horses and donkeys…

A: In interspecific hybridization male and female animal of two differently related species are mated.…

Q: Which the following statements about Darwin's theory of natural selection is true? O In order to…

A: In the year 1809, Charles Darwin was born. He gathered a large quantity of data and realised that in…

Q: 2. The process by which individuals that are better adapted to their environment are more lik to…

A: According to Charles Darwin's Theory, the survival, reproduction and transfer of more genes to the…

Q: The closing of the Isthmus of Panama allowed animals to migrate across this land bridge and…

A: Star Wars of Panama closed about 3 million years ago. This cut off an ocean current that allowed…

Q: What process results in the appearance of similar traits in two species that share a common…

A: Evoluion is heritable change in charecteristics of biological population, which keep on take place…

Q: Which evolutionary process leads to environmental adaptations in a population?  random mutations…

A: Evolution is defined as the progressive changes in the traits of certain species in due course of…

Q: Which of these fundamental concepts is well illustrated by genetic exchange among, but distinct…

A: Evolution Is the change in the specific features of a species over several generations and depends…

Q: Sea Otters were hunted nearly to extinction in the 1800’s. California’s sea otters are decedent from…

A: After Darwin's theory of evolution, many new geneticists added new theories and explanations to show…

Q: Natural Selection causes: * Mark only one oval. Changes in the environment All plants and animals to…

A: Introduction Natural selection:- It is a phenomenon in which organisms possessing favorable traits…

Q: hich one of the following is NOT a force of evolution? Genetic drift Mutation Natural selection…

A: In the context of genomics, evolution is a mechanism by which living things undergo alterations in…

Q: Word Bank 2: gradual natural selection adapted frequent survive reproduce frequency nonrandom…

A: Evolution is the key process that regulates the survivability and continuity of species on the…

Q: Natural selection acts on individual but only population evolve true or false

A: Natural selection is the interaction that drives evolution, choosing against qualities that are not…

Q: Which of the following forces of evolution tends to slow down population divergence and prevent…

A: In the context of genomics, evolution is the process by which living things undergo alterations in…

Q: The genetic difference within or between populations in the gene pool and/or gene frequency is…

A: Gene Pool: It refers to combination of all the genes including all type of alleles present in…

Q: Lancaster County, Pennsylvania was first settled by a small number of Amish people in the early…

A: Genetic drift is change in allele frequencies in a populace from one generation to another that…

Q: Which of the following changes or mutations can be acted upon by natural selection? For each choice,…

A: Charles Darwin is often considered the father of evolution theory as he gave the modern theory of…

Q: In a population of 10 beetles, a event occurs, and all the beetles carrying a specific allele are…

A: The study of evolution is a key part of biology that tries to understand how organisms evolve…

Q: What is the difference between natural and artificial selection? Natural selection is rare Both lead…

A: Introduction  Selection in evolution refers to the process by which certain traits are favored and…

Q: Which of the following mechanisms will greatly affect changes in gene frequency of organisms with…

A: The above given statement is about affect of gene frequency.

Q: Considering that the plants with the most trichomes were selected to produce seeds in the parent…

A: Natural selection is the process in which organisms which are more adapted in environment, will have…

Q: Which of the following describe examples where the mechanism of evolution was genetic drif A rock…

A: Evolution is defined in population genetics as a change within the frequency of alleles (gene…

Q: phase best describes the major process compon evolution? natural selection O adaptation O survival…

A: Ans: Charles Darwin the British naturalist gave the theory of biological evolution. He defined…

Q: The long horns on Texas longhorn cattle are an example of - natural selection  - genetic drift  -…

A: Texas Longhorns are descended from the cattle that Christopher Columbus carried to Hispaniola in…

Q: What makes Alfred Wallace an important figure in evolutionary biology?     He independently…

A: Field of biology that studies the evolutionary processes like natural selection, speciation etc is…

Q: Does this lab demonstrate natural selection? Use evidence from the lab and explain how the evidence…

A: Natural selection: it is a process in which organisms better adapted to the environment, survive and…

Q: Choose which evolutionary mechanism is most likely to cause speciation events.          founder…

A: Introduction:-  Speciation is the process of creating a new plant or animal species. When a group…

Q: Imagine a scenario where you are male and have a triangular head. For some reason, females in your…

A: The correct answer is natural selection. In this case the females decides that which species they…

Q: Which of the following groups of organisms have evolved as a result of artificial selection? Farm…

A: Artificial selection is the identification and selection of desirable traits in plants and animals…

Q: Alfred Russel Wallace agreed with Charles Darwin about which of the following evolutionary ideas?…

A: Before we can answer the question, we need to understand the concepts mentioned. Natural selection…

Q: Gray aphid (sap sucking insects) had offspring that evolved into red aphids through horizontal gene…

A: Microevolution It is defined as the change in  allele frequencies occurring over a time within a…

Q: Of the ways that populations can evolve over time, is the only mechanism in which the environment…

A: The modern theory of organic evolution or neo-Darwinism is the most accepted theory of organic…

Q: Relate this theory to one from the 19th or 20th century

A: Charles darwin, one of the best evolutionist wrote a book 'Origin of species'.He is the one who…

Q: Genetic drift in a population affects the gene pool in which of the following ways? decrease in…

A: Genetic drift is an evolutionary changes in allelic frequencies of a population as a matter of…

Q: Which of these evolutionary mechanisms could result in a population that becomes less genetically…

A: The correct answer is second one that is genetic drift.

Q: Why was Lyell's concept of uniformitarianism, which proposed that the Earth had been going through…

A: The concept of uniformitarianism was given by Charles Lyell in his book 'Principles of Geology'. He…

Q: Descent with modification" describes... Choose the best option. Group of answer choices Any…

A: in genetics , we consider evolution as the process in which simple organisms , or structures or…

Q: Which of the following groups of organisms have evolved as a result of artificial selection? * Farm…

A: Selection is defined as the trait selection in individuals in such a way that there are found more…

Q: Which of the following is not an example of natural selection?     Development of tanned skin in…

A: Development of tanner skin in humans is not an example of natural selection.  The examples of…

Q: If one were to look at the timeline of speciation, most organisms through this process fairly…

A: Speciation is a process of formation of a species in the due course of evolution. There are four…

Q: Of all the evolutionary mechanisms known, only one is non-random: Group of answer choices genetic…

A: Introduction The Process By Which New Life Forms Emerge Organically Over Extended Periods Of Time Is…

Q: Which of the following forces creates diversity? 1 - bottleneck effect 2- genetic drift 3 - mutation…

A: Genetic diversity is a measure of the variation that exist in the genetic makeup of individuals…

Q: The next five questions (questions 11-15) are related to each other. Read all of the scenarios very…

A: Thank you for the question  Answer : This is an example of natural selection. Justification : As it…

Q: The human population went through a genetic bottleneck around 70,000 years ago, resulting in a…

A: During the genetic bottleneck event in human history, it is believed that the human population…

Q: A small population of wood rats boarded a ship leaving Europe and ended up in South America where…

A: Answer. Natural selection: is a process by which the forms of organisms in a population that are…

Q: Britain’s Queen Victoria was a carrier for the allele that causes hemophilia and she passed this…

A: Hemophilia is a sex linked recessive genetic disorder in which blood doesn't clot normally.…

Q: Which

A: Evolution:- Is  changes in the genetic composition of a population over successive generations.

Q: What is adaptive radiation?     Large-scale evolutionary patterns and trends in speciation     The…

A: Evolution is defined as the change in trait of a species over a period of time.

Q: The relatively high percentage of individuals in parts of Africa who are heterozygous for the sickle…

A: Blood has specialized cells called RBCs that help in carrying oxygen to the different parts of the…

Sexual Motivation

Sexual motivation refers to a person's overall desire for sexual activity. It is an unusual motivation. Generally, among lower animals, the term 'drive' is commonly referred to as sexual motivation. It means a certain internal force drags the animal to be involved in reproductive behavior. On the contrary, humans are not simply driven by any internal force; rather, the sexual motivation in humans is due to several factors such as biological (hormones, genes), environmental (familial upbringing, chemical exposure) and physiological factors (culture, desire) which further determine engagement in sexual activities.