Imagine a scenario where you are male and have a triangular head. For some reason, females in your area find triangular heads very attractive, so guys with triangular heads mate and reproduce more than other men. Eventually, all the non-triangular-headed people die out and the whole population of people in your area has triangular heads. This is an example of what? Question 5 options: natural selection evolution reproduction irritability development

Q: Natural selection is a process by which organisms with favorable traits produce more successful…

A: Evolution is a gradual process of the formation of modified organisms or sometimes the occurrence of…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Introduction :- A mouse, or mice as a group, is a tiny animal. Mice have a pointed snout, short…

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: Which statement about natural selection is true?

A: In this question, we have to find out correct option about natural selection.

Q: It is said that sexual reproduction is selectively advantageous to asexual reproduciton. Why is the…

A: Reproduction is process in which genetically or biological similar offsprings are produced .…

Q: Genetic diversity is important for survival in a population as the environment changes. Describe 3…

A: Genetic variability is either the presence of, or the age of, hereditary contrasts. The Genetic…

Q: The founder effect is a type of (genetic drift / gene flow) in which individuals in one small group…

A: To describe: The founder effect

Q: Review the discussion of evolution and the Investigating Life feature. Which of the following…

A: Moth collect mainly the orchid nectar as food. The orchid nectar helps in nutrition of moth. So it…

Q: difference in shell size and shape prevents most mating attempts between snails from the two kinds…

A: Here, we can see that the snails have adapted themselves according to the environment and hence…

Q: A species of freshwater snail is introduced to many ponds on an island. In ponds with crayfish (a…

A: The correct statement that summarises what is happening in this example is-  • In allopatry,…

Q: Intentionally breeding dogs for favorable traits to express in their offspring is an example of…

A: Selection is the process by which favourable traits are selected in organisms across generations.

Q: Natural Selection is defined as the differential survival and reproduction of individuals due to…

A: IntroductionNatural selection is a cornerstone of evolutionary biology, explaining how populations…

Q: 18 19 20 QUESTION 15 During times of fertility, the rump of a female primate may change color,…

A: Primates come under order eutheria. These are also called truly placental mammals and shows unique…

Q: Which reproductive strategy leads to genetic variance in offspring, rather than simply maintaining…

A: Reproduction is basically the mechanism by which the organism produces young ones similar to itself…

Q: One of the key ingredients of evolution by natural selection is variation. Within a population,…

A: Introduction :- In biology, variation refers to any difference between cells, individuals, or groups…

Q: some cases, males or females do care for young of their own species that are not their own, as when…

A: There may be reason that adoptions fostering helped these females reproduce later on as Regular…

Q: Use evolutionary theory to explain the difference in longevity of women in matriarchal and…

A: Evolutionary theories take long term look at the emergence of human species. According to this…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Genetic diversity is defined as the number of different alleles in a population. This term is used…

Q: You want to breed turtles and choose to incubate turtle eggs at the highest temperature (36°C) in…

A: Fertilization is the process by which the male and the female gamete fuse together. In most species,…

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: Genetic variation within a species is mostly like the result of??

A: Genetic variation means variation occurs in the DNA sequence of the genome. It plays an important…

Q: If you breed a horse and a donkey, their offspring is called a mule. Horses and donkeys can clearly…

A: Reproductive isolation is a type of isolation mechanism which prevents the mating of one species…

Q: Sir Francis Galton (1883) developed the concept of eugenics, advocated the encouragement, through…

A: Francis Galton, derived the term “eugenics” from the Greek word eugenes, meaning “good in birth” or…

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: Kettlewell's experiment  When had a mutation taken place that was important to the relationship…

A: Kettlewell experiment was the first to investigate the peppered moth evolutionary mechanism. The…

Q: Identify the benefits and costs of sexual recombination in the context of evolution. Select all that…

A: Sexual recombination leads to the shuffling and recombination of genetic material from two parent…

Q: Having a post-reproductive stage in the life cycle is unique to: Group of answer choices all…

A: A species is supposed to have a post-reproductive stage if a female of the adult population expects…

Q: The Pacific Salmon begins its life in freshwater, eventually swimming downriver to the Pacific…

A: The Pacific salmon fish begins the journey of its life in the freshwater of rivers, but it soon…

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: During his time, even if his contributions to the field of taxonomy is significant, he did not…

A: 3.  Option A Endosymbiosis  The endosymbiotic theory is the accepted mechanism for how eukaryotic…

Q: Which statement about the genetic basis of races in humans is correct? You are more closely related…

A: Answer :- Option (C) is correct. - Racial differences only account for about 3-5% of genetic…

Q: In birds: females are ZZ and males are ZW females are ZO and males are ZZ females are XX and males…

A: Sex chromosomes in the birds are designated as Z and W. Male is the homomorphic sex (ZZ) where as…

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: Scientists can measure evolution in both individuals and in populations. True False

A: Evolution is the net directional change or any cumulative change in the characteristics of organism…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: There are various stated evolutionary mechanisms which are characterized based on how it affects the…

Q: two similar species inhabit the same environment, natural selection favours a divergence in…

A: Character displacement refers to evolutionary changes that occur when two similar species inhabit…

Q: You are tall, dark, and handsome but only average in intelligence. You want your future sons and…

A: The variations in the population are made by mutations, gene flow, genetic drift. These bring the…

Q: The life table below is for a species of lizard. Use it to answer the questions below. It can be…

A: Population growth is the change in the number of individuals in a population over time; it may be a…

Q: 4. End result: The more advantageous trait, brown coloration, which allows the beetle to have more…

A: What would happen if there were no Predators (birds) in the forest? Answer: The numbers of green…

Q: The English peppered moth has two main colour variations, white and black. Black soot from pollution…

A: Natural selection is the method through which plants and animals that have been best adapted to…

Q: Which is NOT a component of evolution by natural selection? Group of answer choices Organisms…

A: Introduction: Natural selection is the process through which organisms evolve and adapt according to…

Q: fill the blank

A: Mendel has performed a few tremendous experiments and found different laws of genetics. He found…

Q: Provide three different examples of how female choice has influenced the evolution of a species. At…

A: All the animals face two major challenges, one being survival, having a protective instinct and the…

Q: he main reproductive organs hang by broad sheets of from the part of the abdominal cavity. The…

A: The reproductive system which is also known as the genital system of the body comprises all the…

Q: A male peacock has a beautiful tail that may affect its ability to evade predators. This is an…

A: Ans - 2. Reproduction and survival Evolutionary trade-off refers to the condition in which evolution…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.