Why do you think the ancestors of the extant amphibians became successful in adapting from the life on water to life on land?

Q: Describe the evolutionary changes that had to occur to go from a Osteichthyes to a mammal. What were…

A: Evolution is a phenomenon that occurs in the environment as a result of hereditary changes and…

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: What are the problems that vertebrates needed to solve to adapt to the terrestrial environment since…

A: In aquatic medium there are plenty of water, but in terrestrial environment water availability is…

Q: The first vertebrates to evolve werea. amphibians.                   d. amniotes.b. jawed fishes.…

A: Vertebrates radiated in the late Ordovician period. It was about 450 million years ago.

Q: Fossil evidence that many saurapod dinosaurs had feathers suggests that ____. flight is an…

A: In the course of evolution Dinosaurs are the important part. So according to the fossils the size of…

Q: Do these animals share any structural similarities inside their wings that would suggest they are…

A: The analogous structures are found in the organisms that have evolved through different paths. There…

Q: Which of the following characteristics evolved independently in mammals and birds? bone endothermy…

A: Mammals are a group of vertebrate animals constituting the class Mammalia and characterized by the…

Q: In what ways do the genera Australopithecus and Homo differ?

A: Genetic evidence showed that about 7-10 million years ago, humans were evolved from chimpanzees. The…

Q: What are the key events in the evolution of the animals?

A: Evolution can be defined as the change in the characteristics of species over several generations…

Q: Although other groups of vertebrates are more numerous and have existed longer than mammals, mammals…

A: Vertebrates are animals that have rod-shaped vertebral columns. A bundle of nerves runs above the…

Q: Is there any genetic evidence linking lobe-finned fish and amphibians

A: Lobe-finned fishes and amphibians are closely related and connected through a common ancestor which…

Q: What evidence suggests that four-legged animals came from fish?

A: Evolution is a slow process which explains that how the species changes with time to survive in…

Q: What evidence is there that dinosaurs brooded their eggs and tended their young long after they…

A: Dinosaurs are an assorted gathering of reptiles of the clade Dinosaurian. They initially showed up…

Q: Why are the lung fish considered to have a common ancestor with amphibians

A: Rhipidistian freshwater fish belonging to the Dipnoi subclass are lungfish. Lungfish are best…

Q: Amphibians evolved from what type of ancestral fish?a. sea squirts and lancelets                  d.…

A: Amphibians can be defined as the ectothermic, tetrapod vertebrates belongs to the class Amphibia.…

Q: According to the fossil record, what did the common ancestors of modern birds look like? Horses O…

A: Option D is correct. According to fossil record, the common ancestors looked like were dinosaurs.

Q: Describe one evidence which decisively proves that birds have evolved from reptiles?

A: Some of the observable signs and fossils that are found on earth serve as evidence of evolution.…

Q: According to the current hypothesis, when did most major groups of animals evolve?

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

Q: How does variation in resistance to toxic rough-skinned newts affect the evolution of garter snakes?

A: The rough-skinned newt is famous for it's strong toxin released from it's skin. have rounded snout,…

Q: Some people state that the dinosaurs have not “gone extinct,” they are with us today. What evidence…

A: According to many evolutionists, dinosaurs are not really extinct but are rather feeding at our bird…

Q: Describe the major vertebrate adaptations that arose in fishes. Which of these features are also…

A: Fishes are the aquatic chordate animals which belong to Pisces family. Fishes are used as delicacy…

Q: Which of the following is an example of evolution co-opting a ready-made structure for another use?…

A: Some scientists like Darwin believe that evolution is a occurred through a series of small, gradual…

Q: What traits or innovations allowed movement of animals onto land, and why might these traits have…

A: Physical or behavioural adaptations are possible. A physical adaptation is a form of structural…

Q: Why is the occurrence ofeyelids in amphibians incomparison to their absence infishes an adaptation…

A: Amphibians belong to the phylum Chordata. They are vertebrate tetrapods. This group includes frogs,…

Q: What group of animals is thought to have moved onto land to become the first amphibians?

A: Frogs, turtles, toads, skinks, and caecilians are all members of the class of cold-blooded…

Q: Can fossils bridge the evolutionary gap between fish and tetrapod vertebrates?

A: Phylogeny is the branch of biology that studies phylogenetic analysis. A phylogenetic analysis is…

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

A: Tetrapods are the four limbed structure.And these limbs have derived from fins.The limbs of all…

Q: In 1928 Walter Garstang hypothesized that tunicates resemble the ancestral stock of the vertebrates.…

A: Introduction: Tunicate dwells in marine environment and is an invertebrate belonging to subphylum…

Q: Although most salamanders have four legs, a few species that live in shallow water lack hind limbs…

A: Natural selection refers to the evolution of species in such a way that the changes are better…

Q: Prehistoric remains of animals consist almost exclusively of bones and teeth. Why?

A: It is generally found that the prehistoric times mainly comprise of harder body parts like bones and…

Q: Based on phylogeny and history of evolution, do new anatomical features such as lungs (amphibians)…

A: The study of links between various groups of species and their evolutionary development is known as…

Q: what do fossils tell us about the evolutionary history of the animal kingdom?

A: The traces or remains of an organism that once lived on Earth is termed as fossil. Fossils somehow…

Q: Archaeopteryx is a significant fossil find because it gave hints to the evolution of the following…

A: Fossils refer to remains or traces of past life preserved through natural processes. Imprints,…

Q: Which well-known group is ancestral to all living birds? What evidence in the fossil record supports…

A: Fossils are the prime pieces of evidence of evolution. It includes the remnants or impressions of…

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: What is the currently favored explanation for the evolution of vertebrate jaws?

A: The jawless vertebrates belong to the subphylum Vertebrata under the section Agnatha. The…

Q: What similarities are present in birds and reptiles in terms of their external features?

A: Birds are parrot, owl, penquinn, albatross,  Swift and many more whereas some of the examples of…

Q: What are the largest animals ever to have lived on Earth? From what animals are they thought to have…

A: The branch of biology that deals with the structure, function and evolution is called zoology. It…

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: 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: 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: Do you think Woolly Mammoths should be brought back from extinction? How about Neanderthals? why, or…

A: Why Woolly Mammoths should be brought back from extinction? At the conclusion of the previous "ice…

Q: Which one of these is better adapted to life on land - amphibians or reptiles? Explain.

A: Reptiles and amphibians can live on land. But amphibians can also live on water because there…

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: In the evolutionary tree of vertebrates, birds are most closely related to: a) Mammals b) Crocodiles…

A: A chordate is a phylum which contains vertebrates like mammals, birds and some fishes and also…

Q: How could morphological data alone lead biologists to group animals into erroneous evolutionary…

A: The evolutionary relationship between the different organisms is shown by the phylogenetic tree. How…

Q: Until recent discoveries suggested otherwise, animals existing before the Cambrian period were…

A: Cambrian explosion took place nearly 541 million years ago in the Cambrian period. Fossil records…

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.