Recall that amphibians gave rise to the earliest reptiles who then branched off to all the different kinds of reptiles and mammals. List two major adaptations present in REPTILES* that allowed them to live completely on dry land, as compared to amphibians.

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: Where on the tree did the vertebral column evolve? Group of answer choices B D A E C

A: Chordates are evolved from some deuterostomes, as they have similitudes in embryonic development,…

Q: Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had aquatic…

A: The study of evolutionary processes and speciation provides valuable insights into the mechanisms…

Q: Explain why an understanding of bipedalism and brainsize is important in understanding the evolution…

A: Evolution is an ongoing process. Changes occur in species every time, however, only some of them…

Q: Skeletal analysis of Neanderthals suggest that they were physically adapted to cold weather…

A: Neanderthal coexisted with modern human and became extinct. The first fossil of Neanderthal was…

Q: Classic Neanderthal limb bones suggest that: A. the Neanderthals probably had limited manual…

A: Introduction: Neanderthals were a species of human that lived in Europe and Asia during the…

Q: What is the select advantage of the evolution of the jaw in dogfish shark?

A: The dogfish shark or spiny dogfish is the species of the Squalidae family of sharks, which is a part…

Q: Based on similarities among forelimbs, what bones did the common ancestor of tetrapods probably…

A: Introduction : Homologous organs are those organs that have a common origin but different functions.…

Q: The tree shows one lineage of ornithischian dinosaurs and many lineages of theropod dinosaurs. Some…

A: Ornithischian dinosaurs in the above tree serves as a reference point for the theropod dinosaurs…

Q: Which statement is true? A line of lobe-finned fishes g= rise to modern amphibians. A line of…

A: Evolution is defined as the change in heritable characteristics of a biological population over…

Q: Imagine if centaurs were real. Make a Cladogram (Evolutionary Origin) showing its closest relatives…

A: The cladogram is a family tree that shows the evolutionary relationship between different species.…

Q: A hardosaur have large bodies with strong arms and legs and tail, couldn’t they use them to defend…

A: Divergent evolution is the accumulation of differences across groups, which can lead to the…

Q: Describe the early and modern amphibians.

A:

Q: Based on the anatomical evidence from the photos below, create a claim about which modern organism…

A: Introduction:- Evolution is the process of a species' heritable features changing over many…

Q: Summarize the two hypotheses that explain the evolutionof amphibians from lobe-finned fishes.

A: Taxonomy is the science of classification of organisms based on their morphology, biochemical…

Q: Why is there a shorter lactation period in eutherians compared to marsupials?

A: Marsupials are the animals that are born immaturely and are carried by their mothers in their…

Q: Tarsiers are strange creatures. They seem to share some traits with the more primitive prosimians,…

A: The skeleton of the head is called the skull or bony cranium. Skull is divided into parts-…

Q: he australopiths differed from the common chimpanzee in: a   the number of different kinds of teeth…

A: We are answering first question for rest kindly repost

Q: The domesticated dog (Canis familiaris) belongs to which of the following chordate classes? class…

A: The objective of the question is to identify the chordate class to which the domesticated dog (Canis…

Q: The pangolin or scaly anteater is a mammal and yet, its body is covered with scales. Explain. Cite…

A: Pangolin belongs to order Pholidota. It is commonly known as scaly ant eater because of scales…

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: why are pangolins mammals, not reptiles? explain please do not copy from google

A: Pangolins are animals further classified under class mammalia.

Q: Describe any four lines of evidence for evolution of early tetropods from fish.

A: The beginning of tetrapods is largely connected with the rise of earthly vertebrate life. The…

Q: Pair the words with the right description:  Mammalia , Testudines, Rhynchocephalia, Amniota…

A: Mammalia - Member of this taxon nurse their young with milk.   Testudines - They are known as the…

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: 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: Amphibians evolved from which type of ancestral fish?a. sea squirts and lanceletsb. ray-finned…

A: Amphibians evolved from lobe finned fishes as ancestral fish.

Q: Cite at least three (3) scientific reasons why pangolin or scaly anteater is a mammal despite its…

A: Pangolins are also called scaly anteaters because they do not have teeth and feed on ants and…

Q: a-Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had…

A: The study of evolutionary processes and speciation provides valuable insights into the mechanisms…

Q: List the four traits that define chordates.

A: Chordates include all those animals that contain vertebral columns and they belong to the phylum…

Q: Evolution of the tetrapod limb was one of the most important events in vertebrate history. Describe…

A: The movement of tetrapods from the marine to the terrestrial environment signifies the evolution of…

Q: The earliest-diverging gnathostomes (jawed vertebrates) were fish. Which one of the following…

A: Jaws, in fishes, are developed from the pharyngeal arches, which play a major role in protection of…

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: What is the closest common ancestor of the Allosaurus and Aves? A. Maniraptora B. Theropoda C.…

A: The cladogram presented here consists of four major clades which are Dinosauria, Saurischia,…

Q: Why are higher forms of animals bilaterally symmetrical? Explain.

A: The animals are the multicellular, eukaryotic organisms in the biological kingdom.

Q: Give at least (3) body structures that are salient among these groups of animals:  1. Arthropods  2.…

A: Taxonomy is defined as the science of naming, describing and classifying diverse organisms based on…

Q: Understand the evolutionary history of reptiles.

A: The origin of reptiles is well suited to maintain life on land. Many features show a considerable…

Q: ambulacral grooves are present in which animals below? a. a unified skeleton b. no madreporite…

A: Ambulacral grooves are usually found in the starfish which is filled with fluids and contains…

Q: What is the best evidence that Monotremes are a transitional taxon between reptiles and other…

A: Monotremes contain only five species, they are the platypus and four species of echidna. They are…

Q: The pangolin or scaly anteater’s body is covered with scales. How come it is classified as a mammal?…

A: Introduction: Any member of the group of vertebrate animals in which the young are fed with milk…

Q: Select the row with descriptions that could not fully apply to reptiles (Squamata) Select one: a.…

A: Reptiles (Squamata) are a diverse suborder of reptiles that includes lizards, snakes, and…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.