The bones in the front fins of whales and the bones in the human arm evolved from a common ancestor but carry out different functions. This is an example of A. homologous structures. B. vestigial structures. C. analogous structures. D. embryonic structures.

Q: Why are homologous traits similar?   A. they result from genetic and developmental similarities.…

A: The evolution is the alteration in the gene pool of the population from one generation to the next…

Q: Which of the following is a derived trait of vertebrates? a. Jaws b. A mineralized (bony) skeleton…

A: Derived traits are features or characteristics that are exclusive to a specific group of organisms…

Q: The hoof of a horse and the claw of a cat are found to both form due to the expression of the same…

A: When the organs in different species have different functions but they arise from the same genes,…

Q: Why are humans so genetically similar within our species?   A. Because humans evolved in…

A: The objective of the question is to understand why there is a high degree of genetic similarity…

Q: Which of the following is a derived trait of vertebrates? A. Dorsal hollow nerve cord B. A…

A: Derived traits also known as derived characters or apomorphies are characteristics that have evolved…

Q: How does the amount of Neanderthal DNA in modern humans vary geographically? a. Individuals of…

A: Up until around 40,000 years ago, Neanderthals who are close evolutionary related of modern humans…

Q: A major source of evidence for evolution is to be found in the comparative anatomy of organisms.…

A: Evolution is the process of slow and gradual change over a period of time. Many theories are given…

Q: Although many mammals have binocular vision, the anatomical adaptation(s) that set primates apart…

A: The order Primates belong to the class Mammalia. The animals belonging to this group are lemurs,…

Q: "Ramapithecus and Cro-Magnon man are considered: A.ancestors of modern man B.ancestors of monkey…

A: The study of human evolution is generally carried out by comparing human evolutionary history with…

Q: What does ancient DNA reveal about historic episodes of interaction between H. sapiens and…

A: Ancient DNA studies have shown that Neanderthals and Homo sapiens interbred multiple times. This is…

Q: Given a positive genetic correlation between the lengths of the maxilla and the mandible of a bird…

A: Positive correlation and pleiotropic effects.

Q: Cladistic principles suggest that: a. All apes are hominins. b. Outgroups can help to define natural…

A: Cladistics is the method of biological classification where organisms are grouped into Clades, on…

Q: You are studying the evolution of a trait in two species of snakes where both species can flatten…

A: Homologous organs are defined as the organs of different animals that are having a similar structure…

Q: organism that primarily undergoes extensive and rapid growth

A: The fertilization in humans takes place in the Fallopian tubes of the female reproductive system.…

Q: In the Paleozoic era, the first vertebrates to live on land were thea. amphibians.b. reptiles.c.…

A: The Paleozoic era is the earliest of three major geologic eras found in geologic periods which…

Q: Humans evolved from a. monkeys. b. chimpanzees. c. gorillas. d. an ancestor shared with chimpanzees.

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

Q: The amniotes include all but the a. birds. c. mammals. b. reptiles. d. amphibians.

A: The organisms which have a fetal tissue called amnion are referred to as amniotes. It is found…

Q: The fossil nicknamed Lucy was a(n)a. early Homo.b. australopith.c. ardipithecine.d. modern human.

A: Answer: Introduction: Fossils are produced in many diverse ways, but that are widely produced at the…

Q: The first hominid to migrate extensively to Europe and Asia wasa. Homo sapiens.b. Homo…

A: A hominid can be defined as the any member of the biologically family Hominidae. They are found in…

Q: Characteristics that evolved in birds to allow for flight includea. reptilian-like scales on the…

A: Bird anatomy has unique adaptations mainly in flight. These are light weighted organisms with very…

Q: In order to determine polarity for different states of a character a. there must be a fossil…

A: In order to determine polarity for different states of a character;

Q: Sieve tubes and sieve elements are a. homoplastic because they have different function. b.…

A: Pholem is a permanent vascular tissue system associated with the conduction/transport of food…

Q: According to the replacement model, Homo sapiens a. was the first to migrate from Africa. b. is the…

A: Two leading models are there that tried to explain the evolution of modern humans and both of them…

Q: When the genomes of vertebrates are compared,a. genomes of closer relatives are more alike.b.…

A: The genome of an organism has at least two essential functions. The first being the provision of…

Q: The parts of the limbs develop a. in a proximal-to-distal sequence. b. in a distal-to-proximal…

A: We know that The single-celled zygote, which is formed after the fusion of haploid male and female…

Q: Refer to the evolutionary tree in the diagram. Ducks and blue jays are both types of birds.  Which…

A: Introduction :- There are two main approaches to classify the organism's :- phenetics approach and…

Q: DNA sequence data suggest that modern humans last shared a common ancestor with Old World monkeys…

A: Introduction Phylogenetics is a field of biology that investigates organisms' evolutionary…

Q: Which of the following is molecularlgenetic evidence for evolution?

A: The molecular biological or genetic evidence for evolution gives the similarities between many…

Q: Gene duplications during vertebrate evolution have led toA. the control of body segmentation in mice…

A: Gene duplication is an event that leads to the creation of new genetic material during the process…

Q: How do fossils provide evidence that evolution has happened on Earth? Fossils show that some species…

A: Evolution It refers to the process that have transformed or changed life on earth from it earliest…

Q: Denisovans are ancient humans. What would you least expect?   A. They would have a larger brain…

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

Q: According to "The Complex Evolution of Homo sapiens", all early Homo sapiens looked the same. They…

A: The objective of the question is to determine whether all early Homo sapiens looked the same and did…

Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…

A: Evolution is change in the heritable attributes of organic populaces over progressive ages. These…

Q: 36. Which of the following relies on the study of embryos as evidence of evolution? A. Comparative…

A: Which of the following relies on the studies of embryo as evidence of evolution?

Q: According to "Homo erectus – The First Humans”, what are key features that are shared among the Homo…

A: The question is asking for the key features that are common among the Homo erectus species,…

Q: According to "Homo naledi – New Questions on Human Evolution ", where was Homo naledi found and how…

A: The question is asking for the location where the Homo naledi, a species of archaic human, was…

Q: According to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, are Denisovans…

A: The question is asking about the genetic relationship between Denisovans, an extinct species of…

Q: Ornithopods and ceratopsians are characterized by numerous instances of convergence. Which of the…

A: Ornithopods are small, bipedal, running dinosaurs that are herbivorous animals. These dinosaurs have…

Q: Fossils that serve as transitional links allow scientists to a. determine how prehistoric animals…

A: Transitional fossils play a basic part in understanding the developmental history of life on Earth.…

Q: What evidence is found in the fossil record that shows that early ancestors of humans walked upright…

A: Orrorin tugenensis fossil that include the teeth and two thigh bones was found in 2000 in Kenya. The…

Q: The cladistic classification of apes and humans A. Divides hominids into hylobatids, pongids, and…

A: Introduction  Cladistic classification is a system of biological taxonomy that organises taxa in a…

Q: main developments in hominin

A: Human evolution is the evolutionary process within the history of primates that led to the emergence…

Q: Fossils of a dwarf species of human, Homo floresiensis, has been discovered on the Indonesian island…

A: The existing species of humans homo sapiens has developed from primates that are extinct now. The…

Q: After the mass extinction that occurred 65 million years ago, mammals rapidly diversified to occupy…

A: Speciation is the process of formation of one or more species from an existing species. It is said…

Q: Which of the following is most likely to be true of two modern organisms that have a distant…

A: Evolutionary relationships are the association between two organisms on the basis of their ancestral…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.