Amphibians evolved from which type of ancestral fish?a. sea squirts and lanceletsb. ray-finned fishesc. cartilaginous fishesd. lobe-finned fishese. jawless fishes

Q: _____have scaleless skin and a heart with three chambers. a. Amphibians c. Ray-finned fishes b.…

A: Phylum Chordata with a characteristic notochord, pharyngeal gill slits, a post-anal tail, dorsal…

Q: The animals above are members of EE Ruppert&RS Fox which chordate subclade? A. Cepahlochordata B.…

A: Chordates are characterized by notochord, dorsal hollow nerve cord and paired pharyngeal hill slits.…

Q: Vertebrate jaw bones evolved from____ . a. gill supports b. ribs c. scales d. ear bones

A: Vertebrate jaw by A jaw allowed vertebrates to use a large variety of food and interact in predation…

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: A swim bladder is a gas-filled sac that helps fish maintainbuoyancy. The evolution of the swim…

A: Introduction Fishes lives in aquatic environment where there is low availability of Oxygen in water.…

Q: a. List the characteristics of chordates. What were the circumstances that forced them to evolve…

A: Answer :: a) Chordate is a phylum in animal kingdom which includes Urochordata, Cephalochordata and…

Q: describe the key adaptation that were associated with the transition from aquatic life to…

A: Adaptation is mechanism by which organism adjust themselves according to the need of environment…

Q: The evolution of which of the following features of mammals is hardest to trace through the fossil…

A: Fossil records are the remains of dead organisms that remained intact in various layers of soil in…

Q: compare the evolution of bony fish and jawless fish.

A: During the Cambrian explosion approximately 530 million years ago, fish began to evolve. The early…

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: 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: Compare the jawed fish to the amphibian. Relate one way they are alike and 2 ways they are…

A: Introduction Vertebrates:- are also called Craniata, any animal of the subphylum Vertebrata, These…

Q: All vertebrates are chordates but all chordates are not vertebrate? Justify the statement?

A: Chordates are those animals that have rod like notochord.In some chordates, the notochord is…

Q: id the transition of vertebrates from water to land happen quickly? Explain

A: The ecological eras are studied concerning evolutionary time. The time taken for the evolution shows…

Q: ______ lived in Europe, Asia, and the Middle East. a. Ardipithecus ramidus c. Australopithecus…

A: Homo neanderthals inhabited Eurasia from the Atlantic regions of Europe eastward to Central Asia,…

Q: Which chordate group has the most species? A. Hagfishes B. Lampreys C. Bony Fishes D.…

A: Fishes are typically divided into three groups: superclass Agnatha (jawless fishes), class…

Q: Amphibians were the first _________, four-footed terrestrial vertebrates.

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: Segmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid…

A: The segmented body is the most noticeable of the annelid phylum's identifying characteristics. The…

Q: how many million years ago did amphibians appear?

A: Amphibians are cold-blooded vertebrate tetrapods. The class amphibia comprises frogs, caecilians,…

Q: Write a short essay proving that vertebrates evolved from a common ancestor.

A: There are many different fields of biology that prove that vertebrates have a common ancestor from…

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: Scientists used to think that all dinosaurs were large and slow-moving. Which discovery overturned…

A: Fossils of pterosaurs confirmed that these reptiles had hollow bone and wings: One of the most…

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: The position where a spinal cord enters the skull provides evidence about whether a fossil…

A: Skeletal features are important in describing evolutionary changes.

Q: Fingers and toes would be an ancestral feature in land vertebrates. A) True B False

A: Vertebrates include all kind of animal species which contains backbone.

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: The oldest body fossils of a land animal are of_____ .a. insects c. cnidariansb. roundworms d.…

A:

Q: Sharks are chordates that possess which of the following Group of answer choices jaws an air sac…

A: Chordata has a place in the Kingdom Animalia and incorporates every one of the vertebrates, i.e.,…

Q: Match the benefit to the correct chordate adaptation. (match each number to the correct letter)…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: probably Choose a or b a. provide fish with jaws in order to be fearful predators. b. store calcium…

A: Bones are the structures present in the body of vertebrates. Bones provide structure to the body and…

Q: Explain why forams have such a well-preserved fossilrecord.

A: The remains, traces, or impressions of ancient life are called fossils. Their study is known as…

Q: Which of the following occurs only in chordates O A. notochord B. pharyngeal gills C. dorsal hollow…

A: Notochord and dorsal hollow nerve cord found exclusively in chordates.

Q: In order to use Table 1 to properly name Amphibian C, information regarding which of the following…

A: Dichotomous key is a crucial method to identify various species of animals or plants in taxonomic…

Q: Explain why birds are considered reptiles

A: Reptiles belong to Class Reptilia and refers to tetrapod animals including crocodiles, snakes,…

Q: writes a paragraph that describe the different types of evidence for the fact that tetropods evolved…

A:

Q: Describe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan…

A: Explanation: Paedomorphosis is a mechanism that can explain the evolution of the chordate body plan.…

Q: As hominins diverged from other primates, which of thefollowing appeared first?(A) reduced…

A: Hominin is a group that consists of human beings and other extinct Species of human including our…

Q: Arrange the groups in order in which they evolved. ___ 1 (earliest)           a. Jawless fishes ___…

A: The marine ecosystem is defined as the largest aquatic environment with high levels of salt in the…

Q: Cephalopods have complex eyes that arose separately from vertebrate eyes that are also used in…

A: Answer:-  Cephalopods vision system is very complex systems like in vertebrate .  And the eye…

Q: How many years ago did amphibians appear?

A: The amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. The different species…

Q: The similarity in bone structure and arrangement between cats and bats suggests that Humerus -…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Members of Chondrichthyes are thought to be descended from fishes that had ________. a. a…

A: Sharks, rays, and skate, as well as sawfishes and a few handful fish species known as chimaeras, or…

Q: Which of the following would be homologous to human forearms? A A bat's wing B An insect leg C) An…

A:

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: A bird or feathered dinosaur is ________. a. Neornithes b. Archaeopteryx c. Enantiornithes d.…

A: Dinosaurs that have feathers on their body are known as feathered dinosaurs. This species of…

Q: Turtles, lizards, and birds belong to one major lineage of amniotes, and_______ belong to another.…

A: Introduction:- Amniotes are vertebrates that grow their embryos in a sac called an amnion. A…

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…

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.