Jean-Baptiste de Lamarck’s explanation for the evolution of long-legged giraffes from shorter-legged okapi-like ancestors migrating to a savanna would not include which of the following features? over time, inheritance of acquired characteristics in okapis would lead to savanna giraffes once an okapi had acquired longer legs, it could pass on this new trait to its offspring only those okapis with favorable traits (long legs) could be ancestral to savanna giraffes each individual okapi could increase its leg-length by deliberate, consistent exercise okapis in a savanna habitat found it advantageous to stretch their legs for treetop leaves

Q: Steven Frank and Laurence Hurst argued that a cytoplasmically inherited mutation in humans that has…

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: Before Darwin’s theory of natural selection, others suggested inheritance of acquired/learned…

A: Genes are the determining factors of inheritance in organisms. The genes can determine the physical…

Q: A consortium of dairy and beef farmers has hired you to study the evolutionary origins of domestic…

A: Evolution is a change in the heritable qualities of natural populaces over progressive ages. These…

Q: Identify and describe (explain) the four forces of evolution. Imagine a scenario where a population…

A: Evolution The process of gaining new traits which are more fitted to survive in changing…

Q: Cod live in both warm and very cold parts of the ocean.  All cod have a gene for an antifreeze…

A: Polar fish produce a variety of glycoproteins or peptides in a non-colligative way to reduce the…

Q: What is the most straightforward evidence at the molecular level in support of the idea that modern…

A: The genetic ancestry and relationships are contemporary humans were obtained from data basing on DNA…

Q: North American desert horned lizards have the unusual ability to flood their ocular sinuses with…

A:

Q: You are asked to assess whether a population of endangered salamanders can adapt to warming climate…

A: Natural selection and genetic drift are the forces of evolution.

Q: Skin color in humans is an example of an evolutionary trade-off: a situation where a trait that is…

A: what is evolutionary trade offs.. It is a situation in an organism where changes in traits brings…

Q: This figure can be used to represent the sequence of events leading to the evolution of dark-furred…

A: Evolution is the change in the characteristics of a species over several generations and relies on…

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: Assume you are studying two different species of plants that have evolved purple flowers. You…

A: Evolution means that the development of new species occur from the existing ones by the changes…

Q: The image shows the beak shapes of four different finches observed by Charles Darwin on the…

A: Need to find what was observed by Charles Darwin from the broad and narrow beaked finches.

Q: Provided with the evidences on the picture, choose which of these represents descent with…

A: Natural selection as well as other factors can help these alterations get entrenched in a whole…

Q: Suppose that global warming causes ocean rise that obliterates most of the Gulf Coast of Florida and…

A: The question involves a hypothetical scenario in which global warming leads to the destruction of…

Q: species of wingless insects that apparently have evolved from winged ancestral species

A:

Q: new population. Questions Which micro-evolutionary mechanism best describes this event?

A: There are a few basic ways in which microevolutionary change happens. Mutation, migration, genetic…

Q: What does the finding that the PTC taster polymorphism evolved independently in humans and…

A: Evolution is the process by which an organism inherits or adapts favorable characteristics that…

Q: Explain how Darwin’s finches and tortoises assisted him in developing the concept of Descent with…

A: Q no. 1 ) ans.Darwin developed his idea of Descent with Modification, later known as the theory of…

Q: A population of interbreeding birds has been split by a geological event after which the isolated…

A: Species divergence is the process in which two species evolve from common ancestor due to…

Q: Assume that you are studying the evolution of anti-predator behavior in two species of butterfly.…

A: Predators are the organisms that preys upon other organisms. In ecology, predators are those animals…

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: Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past…

A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…

Q: The origin of grazing proto-horses (Merychippus gunteri) from browsing near-horses (Parahippus…

A: Anagenesis It is defined as the mechanism by which one species evolves into another through…

Q: Fill in the blanks with words chosen from the Word bank: All species in the genus humans left Africa…

A: Understanding human evolution is vital because it gives a hereditary guide of our species’ history.…

Q: Recent studies reveal that certain areas of the DNA are less prone to DNA mutations and that…

A: The mutations occur less frequently in functionally limited parts of the genome. The number of…

Q: Which of the following processes and or mechanisms of evolution violate the assumptions of…

A: A population must satisfy five key suppositions in order to be in Hardy-Weinberg equilibrium, or a…

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: The Peppered Moth experiment is an example of natural selection in action.  Explain why the dark…

A: Peppered moth ( Boston betularia ) it has a single genetic locus which is responsible for…

Q: A population of 2000 mice on an island includes 40% white-furred individuals, 50% brown-furred…

A: * 2000 mice population on an island includes 40% white-furred individuals and 50% brown-furred…

Q: Explain why mutations are necessary for natural selection to produce adaptations.

A: Introduction- Any random changes occurred in the genetic material, i.e., DNA is known as the…

Q: In the following scenario, what mechanism(s) of evolution appear to be in play? Also from what lake…

A: Adaptation are the heritable changes which help an organism to reproduce and survive in its…

Q: Suppose that global warming causes ocean rise that obliterates most of the Gulf Coast of Florida and…

A: The homozygous terms mean that the combination of alleles present in the genotype of an individual…

Q: An allele that causes an altered form of hemoglobin occurs in all human populations. However in…

A: Suppose, the normal haemoglobin is produced by HbA allele and defective (sickle shaped) haemoglobin…

Q: During drought years on the Galapagos, small, easily eaten seeds become rare leaving only large,…

A: Darwin proposed a theory called natural selection to describe evolution. According to his theory,…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: