Selection sometimes favors the extreme phenotypes in a population. This would cause hybrid individuals to experience decreased fitness and likely lead to sexual selection within groups of similar phenotypes. Eventually this sort of evolutionary pressure may lead to Genetic Drift O Allopatric Speciation Sympatric Speciation O Stabilizing 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: Using the two Hardy-Weinberg equations, calculate the allelic and genotypic frequencies. Using the…

A: The Hardy-Weinberg equation is a mathematical equation that can be used to calculate the genetic…

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: QUESTION 4 In some species of fish, a forked tail fin is dominant to a continuous tail fin. Fish…

A: According to Hardy Weinberg Equilibrium , population cannot evolve when migration is absent , random…

Q: Which of the following is the only evolutionary force that leads to adaptation? * O Natural…

A: It is necessary for organisms to change according to their environment in order to survive. The…

Q: Change in gene frequencies within a reproductive population is called: O allopatric speciation. O…

A: Evolution is defined as a change in the inheritable traits of biological populations, over multiple…

Q: Environment: Polluted Forest Typica Carbonaria Typica Carbonaria Total Phenotype Frequency 9 Moths…

A: Trait is a characteristic feature that is unique to particular individual. It is represented by…

Q: What term could be used to explain the relative higher frequencies of the sickle-cell hemoglobin…

A: A mutation in the gene that signals your body to create the iron-rich substance that makes blood red…

Q: An inherited trait that gives an orgarism an advantay tor survival ke camoutiage and shape of beak.…

A: Any factor in an organism’s environment health, or physical development that provides it an…

Q: 1. Why are the world's rainforests so important? 2. Predict solutions for slowing the loss of…

A: Rainforests are an ecosystem that plays an essential role in the environment regulation of the…

Q: What are the most common mechanisms of sympatric speciation and in which major group of organisms…

A: Speciation refers to the phenomenon by which the novel species appear or evolve from the population…

Q: Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small…

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

Q: QUESTION 11 Which type of selection pressure is most likely to lead to the evolution of distinct…

A: Selection pressure refers to the forces that influence which variants give an organism a better…

Q: Deer mice are usually found in the woods and are dark brown in color. The deer mice that live in the…

A: Deer mice is a genus of rodents, Peromyscus. They have large eyes and two-tone colored fur. The dark…

Q: Sympatric speciation differs from allopatric speciation in that sympatric speciation Group of answer…

A: Speciation leads to the origin of new species when the population of species is present in different…

Q: Inbreeding in populations leads to which of the following? Oa higher rate of genetic drift an…

A: The mating of organisms with closely related ancestors is known as inbreeding. It contradicts the…

Q: A human protein, MC1R is responsible for telling human cells what type of pigment proteins to…

A: Melanin is defined as a type of natural skin pigment where it provides color to the hair, skin and…

Q: Which of these is NOT a necessary step in the speciation process? Arisal of a barrier to gene flow O…

A: Speciation sets up the basis to clarify and facilitate the biodiversity on Earth for scientists. And…

Q: As shown in the figure, several types of crops descended from the same ancestral species. This is…

A: The process in which plants are chooses with desirable characteristics is known as selection.  It is…

Q: How does variation in resistance to toxic rough-skinned newts affect the evolution of garter snakes?

A: The rough-skinned newt is famous for it's strong toxin released from it's skin. have rounded snout,…

Q: In an r selected species, which would you expect? Select all correct statements. O The % of…

A: r-selected species have a high growth rate but low survivability.

Q: Sympatric speciation by allotetraploidy has been proposed as acommon mechanism for speciation. Let’s…

A: The process of formation of new species from old species during evolution is termed speciation.…

Q: over successive generations. O Habitat formation Secondary Succession The theory of evolution A…

A: Evolution, a change in the genetic makeup of a subgroup, or population, of a species. Every living…

Q: An impassable valley separates two populations of mountain dwelling salamanders for thousands of…

A: Speciation is the process by which new species emerge from existing populations.

Q: Which of the following is true of both analogous and homologous traits? Both indicate the…

A: Homologous structures suggest that comparable selected pressures can produce similar adaptations,…

Q: Which of the following statements correctly describe/s natural selection? Galapagos finches give…

A: Natural selection is the Survival of the fittest.  Individuals of the species that are better…

Q: Which must stop for speciation to Occur? genetic drift O gene flow O all must stop O natural…

A: Speciation is an evolutionary process where the populations of the same species separate and evolve…

Q: What kind of traits result from selective pressure on males from competition with other males over…

A: Sexual qualities are characteristics that evolve as a result of sexual selection.

Q: Sometimes genetic drift occurs when a few individuals colonize a new habitat and form a new…

A: Organisms that are under constant environmental pressure tend to evolve. Organisms that are better…

Q: In order for speciation to occur, there has to be a reduction in Gene Flow Genetic Drift Mutation…

A: QUESTION1 Answer: Option B Pre zygotic isolation The correct answer is pre zygotic isolation as it…

Q: A powerful windstorm moves through a densely populated white oak forest. The oaks in this forest…

A: Floods, hurricanes, tornadoes, volcanoes, earthquakes, tsunamis, storms, and other geologic…

Q: The increase in frequency of the pepper moth's dark morph in England was a result of all of these…

A: Peppered moth or Biston betularia in England shows best example of Natural selection . They were of…

Q: This figure represents the following evolutionary concept: QU

A: Evolution is the process of change in characteristics of organisms over generations. Evolution by…

Q: The lesson learned from Darwin Finches in the Galapagos Islands: O Little genetic variation can be…

A: Natural selection is an evolutionary mechanism where the organism while trying to adapt to the…

Q: Based on all observations, hypothesize the genotypes of the parent flies, making alleles correctly.…

A: The hypothesis is the explanation proposed on the basis of the previous observation or evidence of…

Q: allopatric speciation might be completed to two biological species by natural selection for…

A: Several kinds of species have developed from a common species due to changes in environment factors…

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 species concepts is most consistent with a species that was identified based…

A: The change in the heritable characteristics of the species across many generations is called…

Q: driving force behind the evolution of this population? O Mutation O Speciation O Equilibrium O…

A: It is necessary to change DNA sequences depends on the environmental condition to adapt and alive.…

Q: Environment Unpolluted woods Polluted woods Number of individuals taken by birds Light morph Dark…

A: Kettlewell's (1950) experiment on peppered moths is a perfect example of natural selection in…

Q: What must be present in order for separate populations to be considered separate species? O…

A: A species is a group of individuals having similar anatomical and physiological features.…

Q: Although the individuals in a population must differ genetically for evolution to occur, the…

A: If any of the Hardy-Weinberg equilibrium requirements are not met, the allele frequencies will…

Q: The capsids of some, but not all viruses are surrounded by OA membranous envelope O A protein spore…

A: Viruses are the obligate intracellular parasites, which need living cell to grow and viruses infect…

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.