Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and how it is different from the hypothesized most recent common ancestor of all vertebrates.

Q: Birds are supposed to be the dinosaurs' closest relatives. List and explain five reasons why the…

A: Feathers, toothless beaked jaws, the laying of hard-shelled eggs, a rapid metabolic rate, a…

Q: Explain the significance of the discovery of Archaeopteryx. Why did this fossil demonstrate beyond…

A: Evolution is a natural process that includes several changes over many generations in the…

Q: Mindoro Black Rat (Rattus mindorensis) Explain the following taxon of this animal: Kingdom -…

A: The Mindoro dark rodent (Rattus mindorensis) is a types of rat in the family Muridae. It is tracked…

Q: If you discovered a fossil hominin that was adapted for both arboreal and bipedal locomotion, had an…

A: Introduction Bipedalism is a type of terrestrial locomotion in which an organism moves by using its…

Q: Organisms with a notochord that extends the entire length of the body [ Choose ] throughout its life…

A: Animal kingdom includes- eukaryotes having multicellular structure.

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED APPENDAGES MUSCULAR FINS WITH MUSCULAR LIMBS SWIM…

A: Cladogram used to construct to show similarities and differences between organism . It use to…

Q: Tiktaalik and Protarchaeopteryx are examples of transitional forms. In paleontology, what does…

A: Paleontology, usually spelled palaeontology or palaeontology, is the scientific study of life…

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: Draw a simple cladogram illustrating the evolutionary relationships among extant mammals…

A: The living organisms are interrelated with one another. The study of the interrelationship among…

Q: Which of the following list places the important evolutionary innovations in the correct order of…

A: A phylogeny example is the evolutionary tree of organism demonstrating the history of animal organs.…

Q: Fossil foraminiferans are relevant sources of data in the study of biodiversity and of the past…

A: As it is given that fossils foraminiferans are the relevant sources of data on studying the…

Q: DATA ANALYSIS Use the data in Figure 2 to complete the table. Modern- Evidence from Theropods…

A: Theropoda, whose members are known as theropods, is a dinosaur clade that is characterized by hollow…

Q: what morphological features are present retained by both descendants of marbled salamander and…

A: Evolution is descent with modification. All organisms, somewhere during the course of evolution,…

Q: Explain the significance of the discovery of Archaeopteryx.Why did this fossil demonstrate beyond…

A: Generally, birds are specialised group of vertebrates which have evolved from reptiles during…

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: Evolutionarily protochordates may be intermediate animals between invertebrates and vertebrates.…

A: The Echinoderms belong to the phylum Echinodermata. They possess radial symmetry and inhabit the…

Q: What term should we use to describe the evolution of body types in the anole lizards?  Synomorphic…

A: A change in the characteristics of species over several generations to adapt to environmental change…

Q: Draw a cladogram for the animals: Amphioxus; Lamprey; an osteostracan( derived ostracoderm); Reef…

A: phylum chordata has dorsal nerve cord, notocord, pharyngeal gill silts, anal tail

Q: Some researchers think that Australopithecus garhi may be an ancestor of early Homo because [Select]

A: Australopithecus is a genus of extinct primates similar to modern humans that have been discovered…

Q: Transitional Fossils: Which of the following is the corre sequence in the evolution of structures…

A: Vertebrate incursion from aquatic to terrestrial environments required a significant change in their…

Q: Your age-dating put the age of the rocks you are examining in the early Devonian period. Because of…

A: A phylogeny is a hypothetical relationship between groups of animals that are represented by a…

Q: 30. Class Aves evolved from Jurassic dinosaurs belonging to which of the following chordate groups?…

A: The birds or the aves were cosidered to be evolved fromthe jurassic dinosaurs of clade Therapoda.…

Q: List two possible hypotheses for why human head lice diverged evolutionarily from chimpanzee lice:

A: Divergent evolution occurs when a population of animals or plants is divided into two groups by a…

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED SLITS AND SWIM APPENDAGES MUSCULAR SUCKER- FINS WITH…

A: Cladogram is a diagrammatic illustration which represents how the taxons are closely related to each…

Q: Which of the following structures are homologous in arthropods? 1st leg of horseshoe crab: 1st…

A: The arm of a human, the wing of a bird or a bat the leg of a dog and the flipper of a dolphin or…

Q: In the lineage leåding to tetrapods, the fins of aquatic wertebrates evolved into the limbs of…

A: “Tetrapod” means four feet and all the species that have four feet are tetrapods. This group also…

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: AN adaptive scenario for how lungs evolved in the tetrapod ancestor?? use the swim bladder to help…

A: Lungs are the central respiratory organ in the body. Oxygen is required for regular energy…

Q: the common ancestor of Cnidarians were an open-ocean jelly fish, what would you infer regarding the…

A: Cnidarians is a phylum which comes under the main classification animilia  They are aquatic animals…

Q: List one evolutionary trade-off in members of chordates

A: Chordates are animals of phylum Chordata and kingdom Animalia with remarkable features of having  a…

Q: homed dinos roc and erosurs duckb mored sauropods prosauropods other theropods watives theropods…

A: Cladistics is mainly a  process of categorizing the organisms according to their shared traits. This…

Q: Which is NOT a characteristic of all chordates Group of answer choices phalangeal slits post-anal…

A: A chordate is a member of the Chordata phylum. At some point during their larval or maturity stages,…

Q: Can you answer all the parts to this question regarding the diagram  Hemichordates are a sister…

A: Part a: It has been studied that hemichordates are not classified as true chordates. Although…

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: What are examples of the following groups of vertebrates: Chondrichthyes, Actinopterygii,…

A: The vertebrates are a group of animals that have a spinal cord that is enclosed by cartilage or a…

Q: Which ones are synapomorphies of the chordates and which ones are symplesiomorphies based on this…

A:

Q: are birds such as cassowaries and ostriches the closest links we have to velociraptor dinosaurs or…

A: Aves is the name of other class which birds belong and its its forelimbs are modified into wings .…

Q: Eels have slender bodies that facilitate moving through narrow cracks in rocks when searching for…

A: -Eels which are ray finned belongs to the order Anguilliformes. -These are the limbless aquatic…

Q: List three groups of adaptations that guided vertebrate evolution, and explain how each has…

A: Introduction  Adaptation are the changes in the physical and behavioural characteristics which helps…

Q: Which of the following statements regarding dipnoi (lungfish) is true?     amniotes share a more…

A: Lungfish are freshwater  rhipidistian vertebrates belonging to the order Dipnoi. Lungfish are best…

Q: Which statement best explains why Lystrosaurus fossils are found on these two continents?

A: A fossil is any preserved traces, impression, or residue of a once-living thing from a previous…

Q: Several groups of vertebrates, such as seals, ancient extinct plesiosaurs (swimming ocean reptiles)…

A: Tetrapods are the four-legged organisms belonging to the Tetrapoda superclass of the animal kingdom.…

Q: What types of molecular and morphological changes occurred along the different branches that led to…

A: Answer: Introduction: Tetrapods (means four limbs) evolved from a group of animals called as the…

Q: Temnospondyl fossils show evidence of a lateral line system in the juveniles, but not in the adults.…

A: The correct option is shown below.

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED SWIM APPENDAGES MUSCULAR SUCKER- FINS WITH MUSCULAR…

A:

Q: How did the characteristic differences between aquatic and terres-trial environments influence the…

A: The basic differences that animal are required to accommodate while moving from water to land are…

Q: In the lineage leąding to tetrapods, the fins of aquatic vertebrates evolved into the limbs of…

A: Tetrapods evolved from a finned organism that lived in the water. Their evolution happened 400…

Q: What is the most probable primitive condition for eutherian (placental) mammals (node C)?

A: Eutherians are differer from noneutherians by various phenotypic traits of the feet, ankles, jaws…

Q: Hypothetically, if large/medium sized whales had not evolved, how may this have impacted the…

A: * Megalodon is an extinct species of mackerel shark . *It was thought to be member of family…

Q: What characteristics are shared between monotremes and placental mammals but not marsupials? What…

A: under the class Mammalia, vertebrate animals are present. they are subdivided into- monotreme,…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.