Prompt Human babies of low weight lose body heat quickly, and are more likely than other babies to get ill from infectious diseases. Babies of large body weight are more difficult to deliver via the pelvis, resulting in a higher rate of death in childbirth. Research indicates that babies of “medium weight” have the lowest rate of mortality, and there is a strong selective pressure favoring “medium weight” babies. Questions Which micro-evolutionary mechanism applies in this case? Why?

Q: The path of whale evolution has involved the reduction or loss of several traits that are still…

A: Whales, unlike their terrestrial mammal counterparts, lack the ability to smell underwater. This…

Q: natural selection

A: Evolution is change in characteristics of species over several generation and relies on natural…

Q: Which of the following ideas is NOT included in Darwin and Wallace's theory of evolution? * Natural…

A: Q.  The correct option in image 1 is option A i.e, Natural Selection eliminates adaptive traits. It…

Q: While the French biologist LaMarck was correct in proposing that evolution does occur, he believed…

A: Darwin's theory of evolution of natural selection states that organisms that possess traits that are…

Q: Bipedalism has many selective advantages. However, there is one disadvantage to walking on two feet:…

A: The human birth canal is narrower and more tube-like. Due to bipedalism, human mothers have thinner…

Q: One of the deadliest animals on earth is the rough skinned newt. It produces highly toxic skin…

A: The formula that can be used to calculate the frequency of alleles is the Hardy-Weinberg formula.

Q: How can Darwin's finches explain natural selection and descent with modification? What is another…

A: Introduction:- Natural selection occurs when individuals with specific genotypes are more likely to…

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

A: Evolution is the gradual accumulation of changes in organisms over a period of time. The theory of…

Q: Compare and contrast the five patterns of natural selection that drive adaptation.

A: The concept of natural selection was first explained by Charles Darwin. According to this concept…

Q: Which of the following statements explains how the morphotypes found on one island, and shown in the…

A: Speciation is the process of formation of a new species, that is distinct from a previously existing…

Q: First, in no more than two sentences, explain Natural Selection (use your own words).

A: Evolution is the process by which species of organisms change over time through the gradual…

Q: The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the…

A: Natural selection is the mechanism of adaptation and modification of populations of living…

Q: Four Caribbean islands with similar environmental conditions have three different species of anole…

A: A niche is the role an organism has in an ecological community - its interaction with abiotic and…

Q: Some human traits may have arisen by sexual selection. Over thousands of years, women attracted to…

A: Evolution involves “descent with modifications” which results in the alteration of characteristics…

Q: Some fish in a murky underground lake have lighter scales than the others. this makes it slightly…

A: Natural events can sometimes work in such a way that a particular morphotype of a species may find…

Q: Linear evolution suggests that there is a ladder, or step- progression, to evolution over time one…

A: The pre-Darwinian theories established by Aristotle, when species were believed to be static…

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

A: There are few changes occurring in the gene which may cause the change in the trait and positive…

Q: 300 carries the allele for this disease. However, in some populations, including the Irish…

A: The first option is correct that is all three populations descend from a small number of settlers.

Q: How were researchers able to determine that Soapberry bug mouthparts had evolved to be shorter in…

A: given here are some of the statements about soapberry bug mouthparts and the following among them is…

Q: Do you think the human race is continuing to evolve in a Darwinian, genetic sense? Are the genes of…

A: Darwin suggested the survival of fittest and natural selection criteria for evolution. Thus…

Q: What is an evolutionary tree? Is there a precise evolutionary tree known by science that explains…

A: The variation in the characteristics of species of living beings with time is called evolution. This…

Q: How can a shift in the proportion of genes in a population could lead to the evolution of a new…

A: Introduction: Evolution of a new species or a whole population can caused by environmental as well…

Q: What is adaptive radiation? Explain it with the example of Darwin's finches.

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

Q: What is the difference between evolution, natural selection, and artificial selection?

A: Evolution is a process that leads to change in genetic material of a population over time.…

Q: Most scientists think that a small group of finches colonized the Galápagos Islands thousands of…

A: Natural selection just follows up on the population's inheritable qualities: choosing for valuable…

Q: Part 4: Peppered Moth Allele and Gene Frequencies The dark allele in peppered moths is dominant (B=…

A: Introduction :- Genetic drift is a mechanism of evolution that occurs due to random fluctuations in…

Q: Scientists have long believed that the 14 species of finches on the Galapagos Islands evolved from a…

A: Darwin's finches (also known as the Galápagos finches) are a group of about 18 species of passerine…