Which of the following is true regarding evolutionary changes in morphology of dentition over time in our evolutionary lineage? Group of answer choices The reduction in size of canines the reduction in the size of the third premolar The increase in the total number of teeth The increase in enamel thickness the increase in the size of molars and canines

Q: Which of the following are shared-derived* characteristics of the species found within the Genus…

A: Shared derived characters among Genus Paranthropus.

Q: Neanderthal fossils were first discovered in the nineteenth century. Study of their morphology…

A: Physical traits are but the expression of a particular type of genotype alone. Thus the more closer…

Q: The dorsal fin of a dolphin (class Mammalia), and the dorsal fin of a shark (class Chondrichthyes),…

A: Anatomical evidence of evolution helps in determine similarity and dissimilarity of recent organic…

Q: Which of the following feature is exclusively present in members of class Mammalia? 1.Pulmonary…

A: The phylum chordates or vertebrates come under kingdom Animalia that include animals with backbone…

Q: You find a fossil skeleton that exhibits the following characteristics: 4 different kinds of teeth,…

A: The Cercopithecinae are a subfamily of the Old World monkeys. Cebids are the subfamily of new world…

Q: Dogfish sharks (Squalus acanthias) represented  “primitive” gnathostomes and cats (Felis catus)…

A: Anatomy is a branch of biology concerned with identifying and describing living organisms' bodily…

Q: From this lab, one might conclude that certain trends can be detected, trends from ancestral…

A: Animals evolved through a process known as evolution, which involves changes in a species' features…

Q: Most animals show derived characteristics (character states) that differentiate them from their…

A: Evolution refers to the change in the species characteristics over several generations. Evolution…

Q: Which of the following is a characteristic of mammals?     homodont     mammary glands…

A: Introduction Mammals:- Mammals are a group of warm-blooded vertebrate animals belonging to the class…

Q: Mammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had…

A:

Q: Neanderthals are recognizably human but have distinctive facial features and a stocky build that…

A: Homo sapiens and Neanderthals formerly shared the same territory and lived side by side. And…

Q: How does the limb orientation of "advanced" tetrapods differ from that of "primitive" tetrapods? How…

A: Tetrapods are four-footed animals that belong to a group that comprises all vertebrates above the…

Q: The following image is from a scientific publication by paleontologist Niel Shubin, who was part of…

A: Homologous structures such as organs or bones are the structures which posses similar anatomical…

Q: List four very different anti-predator adaptations used by different invertebrate deuterostomes and…

A: 1) sponges are protected from predators by their disagreeable taste and smell and by their hard…

Q: Structures as different as human arms, bat wings, and dolphin flippers contain many of the same…

A: Yes, Humans arms, bat wings and dolphin flipper all they have same bones in many different types and…

Q: Which of the following is a correct way to distinguish reptiles from amphibians? Group of answer…

A: Amphibians are the animals that can live in water as well as land. The examples of amphibians are,…

Q: Which of the following is true as the presence of bones is similarly found both in the baleen whale…

A: Baleen whales (systematic name Mysticeti), also known as whalebone whales, form a parvorder of the…

Q: Which of the following statement is TRUE about the structures shown in the picture? * Human Dog Bird…

A: Evolution has different selective pressure on different populations, as a result some structure…

Q: Which of the following correctly describes the cleavage pattern in reptiles, birds, and fish?…

A: Cleavage is the process of cell division in the developing embryo following fertilisation in…

Q: Which of the following characteristics are indicative of primates only

A: Primates are a group of mammals that belong to human together with apes and monkeys and few other…

Q: In which ways does the limb orientation of "advanced" tetrapods differ from that of "primitive"…

A: Manus is a term used for hands or and forelimbs.

Q: All of the following are traits of vertebrate species, EXCEPT: The presence of a dorsal nerve cord.…

A: Embryology refers to a branch of biology that deals with the study of the formation and development…

Q: Pharyngeal slits are which of the following?   Question 24 options:   a)  Openings in the…

A: Pharyngeal slit are opening in the pharynx that extend to the outside environment. In organisms that…

Q: On a research expedition to the Galapagos, you and your research team discover four new species! All…

A: Chordates are the phylum in animal kingdom.  Phylogeny represents the evolutionary relationship…

Q: Why did Neanderthals become extinct? State at least four major factors to explain their fate.

A: A very long time ago,Homo sapiens and Neanderthals shared the same land and lived together.And…

Q: The Humans That Lived Before Us, which of the following is not associated with the Fossil remains…

A: 'Lucy' was the most famous discoveries found in Unearthed, at Hadar Ethiopia in 1974. She (Lucy) was…

Q: In the hips of modern birds the pelvic bone is _____. angled posteriorly because birds descended…

A: The anatomy and physiology of the birds are specially designed to enable flying. The specific…

Q: How and why do jaws have evolved?

A: How jaws evolved : Jaws probably originated in the pharyngeal arches supporting the gills pf jawless…

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: An example of peramorphosis would be a____.   salamander that becomes sexually mature while still…

A: Peramorphosis is a process in developmental biology, where the growth/maturation of an animal is…

Q: human

A: STEP 1: Evidences supporting humans are more evolutionary related to fish than they are to insects.

Q: Dinosaur and ancestral bird fossil data from the Triassic, Jurassic, and Cretaceous time periods…

A: Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the…

Q: Which of the following are traits are observed in Homo erectus crania (select all that apply)? Group…

A: Homo erectus These are the extinct species of the archaic human. These species belong from the…

Q: All of these characteristics of P. aethiopicus suggest that it may represent an evolutionary…

A: Paranathropus is derived from a greek work, in which "para" means near and "anthropus" means man,…

Q: Pakicetus is an ancient wolf-like organism that lived 50 million year ago. It had wolf-like ears and…

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

Q: Neanderthals are recognizably human but have  distinctive facial features and a stocky build that…

A: Introduction Neanderthals Were Archaic Humans That Lived In Eurasia Until About 40,000 Years Ago.…

Q: Evolutionarily, the jaws of vertebrates developed from   the circular mouth of lampreys.   the…

A: The evolution of the jaw is one of the foremost noteworthy innovations in vertebrate history. A jaw…

Q: Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why…

A: Amphioxus, also called lancelets, are the marine invertebrate chordates.

Q: The ancestors of extant tetrapods first evolved the ability to live out of water over 350 million…

A: Tetrapods are vertebrates with four limbs or appendages that resemble legs. These animals are…

Q: Evidence for biocultural evolution during the Upper Pleistocene may exist in the form of…

A: Introduction :- Evolution is the phenomenon which leads to the creation of new species from the…

Q: Dinosaur and ancestral bird fossil data from the Triassic, Jurassic, and Cretaceous time periods…

A: Introduction: A null hypothesis is a type of hypothesis explaining the population parameter that has…

Q: Which of the following characteristics are indicative of mammals?     post-orbital bar/closure…

A: Mammals are the most advanced members of the class primate. They have mammary glands for feeding…

Q: The larger eye sockets in the skulls of Acanthostega and Ichthyostega suggest that they were ______.…

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: Compared to the skulls of ancestral sarcopterygians and modern lungfish the skulls of Acanthostega…

A: The skull is a bone structure that forms the head in vertebrates.

Q: A synapomophy is a shared, derived characteristic. This differs from a symplesiomorphy which is a…

A: Synapomorphy It refers to the characters that are derived from a clade, i.e. the characters derived…

Q: Which of the following best describes the evolution of smell in chordates?     A) Ancestrally,…

A: Olfactory sense is one of the oldest senses that helps the organisms to identify food, mating…

Q: Cartilage is found in   Question 8 options:   the embryonic stage of vertebrates   the disks…

A:

Q: ach of the following is a critical difference between protostomes and deuterostomes except A.…

A: Protostomes are a group of animal species that descend from the same progenitors and undergo…

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.