defining trait found in chordate embryos

Q: an amniotic egg was crucial to the evolution of vertebrates because it provides the following to the…

A: The amniotic egg was the crucial evolutionary step that allowed the living organisms to breed…

Q: (a) State two advantages of cephalisation (b) Outline the advancement features of reptiles that…

A: Cephalization is the differentiation of the anterior end of an organism into a definite head. This…

Q: Whale skeletons contain nonfunctional pelvic bonesa. as a result of convergent evolution.b. due to…

A: Bizzare behind pelvic bones:                         For decades, scientist predicts that the pelvic…

Q: Humans have a coccyx at the end of the vertebral column. What structure common to all vertebrate…

A: The coccyx is a triangular structure of bones near the bottom of the backbone, just below the…

Q: Phylum Chordata: (Made up of 3 subphyla, two of which lack a true backbone) 1. State the four…

A: Chordata is a vast class of animals that contains vertebrates as well as sea squirts and lancelets.…

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: Adult sea squirtsa. do not have all five chordate characteristics.b. are also called tunicates.c.…

A: e

Q: The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites

A: The process by which cells of blastula get arranged to form germ layers is called gastrulation. The…

Q: ___________ were an early group of humans with short, sturdy builds and heavy supraorbital ridges…

A: Answer is d.) Neandertals.

Q: The group of mammals that still lays eggs is referred to as    a. Marsupials    b. All lay eggs c.…

A: The mammals belong to the class Mammalia and the main features of them are the presence of mammary…

Q: Which of these characteristics best promoted the survival of offspring in reptiles, birds, and…

A: Reptiles are vertebrates that are covered in special skin made up of scales or bony plates. They are…

Q: Chordates are named for having this generalized structure. A. Spinal cord B. Stomochord C. Notochord…

A: The chordates is an advanced group in the animal kingdom. The chordates include cyclostome,…

Q: Characteristics that evolved in birds to allow for flight includea. reptilian-like scales on the…

A: Bird anatomy has unique adaptations mainly in flight. These are light weighted organisms with very…

Q: 1. Today's lungfishes in the Amazon rain forest do not have lobefins, but nevertheless are regarded…

A: Note: Please post other questions separately. Answer: 1. Introduction: Amazon is one of the greatest…

Q: Discuss how humans, as chordates, possess all fourcharacteristics either as embryos or adults.

A: All the chordates posses the following diagnostic characters either in the embryonic or adult…

Q: You find a coelomate animal during a field trip and discover that the embryos undergo spiral…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is D

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: During chordate evolution, what is the sequence (from earliest to most recent) in which the…

A: To find What is the sequence in which the following structures evolved in chordate evolution?

Q: Which of the following about caecilians are TRUE? Select one: a. They are legless, worm-like and…

A: Step 1 Amphibia is a class of first terrestrial tetrapods that lead a dual life in water as well as…

Q: Which clade does not include frogs?a. vertebrates b. gnathostomesc. tetrapods d. amniotes e. lobe…

A: A clade is a group of organisms that have a common ancestor. Frogs belong to the amphibians and are…

Q: The function of the amphibian larval stage is to allowa. extended development of the…

A: The function of the amphibian larval stage is to allow escape from predation. (c.)

Q: Suggest a probable selective advantage of each of the following traits. a)clear wings of many…

A: If a particular trait is beneficial in an organism, then the trait goes through positive selection.…

Q: Unlike eutherians, both monotremes and marsupials(A) lack nipples.(B) have some embryonic…

A: Mammals are warm blooded, have hairs and mammary glands. They are homoiothermous. In the skin oil…

Q: Unlike Archaeopteryx, modern birds have_______ . a. a long bony tail c. a two-chambered heart b. a…

A: The oldest known fossil bird is Archaeopteryx, which dates from the late Jurassic period. It…

Q: ou find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: While the cleavage pattern has remained remarkably consistent among taxa, it has undergone numerous…

Q: The formation of the neural plate is induced by the ….? Group of answer choices a. notochord b.…

A: The neural plate that has formed as a thickened plate from the ectoderm, which is induced by the…

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: 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: 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: Pharyngeal gills of enteropneust hemichordates and chordates are A. involved in filter feeding B.…

A: Hemichordates belong to an unique phylum of marine invertebrates that mostly filter feed by their…

Q: Homo floresiensis fossils were discovered in_____ . a. Australia c. Indonesia b. China d. South…

A: The discovery of Homo floresiensis was largely unexpected, as most previous evidence suggested that…

Q: Which of the following is NOT a characteristic of all reptiles?      A Use lungs and skin for…

A: Reptiles are four legged organisms which form an intermediate group between mammals and amphibians.

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: Amniotes are adapted to life on land by______ . a. waterproof skin d. amniote eggs b. internal…

A: Sauropsids and synapsids are members of the amniote group of tetrapod animals. They are…

Q: Which of the following could be considered the most recentcommon ancestor of living tetrapods?(A) a…

A: The term “tetrapods” means “four feet”. The tetrapods are the animals that belong to the superclass…

Q: The genus Sinitrofulgur includes whelk species that prey on Mercenaria bivalves. Which statement…

A: The correct answer to this problem would be:- D• The Sinitrifulgur specimens featured cracks in…

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: Is there a relevance for annelids between the following? Justify your answer. a. Their body color…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

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: Which is/are true of hemichordates and echinoderms: A. Dorsal hollow nerve chord (collar chord) B.…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is E Explanation : Hemichordata Is A Phylum…

Q: Despite the differences in neck length, mice, humans, and giraffes all have seven cervical…

A: B. Homologous structures.

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: The egg of a fish is what type of chordate egg and why? a. isolecithal b. telolecithal with total…

A: All fish eggs are surrounded by using an envelope, referred to as the zona pellucida (ZP), that…

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

A: Mammals These organisms belong to the amniotes in which the embryo grow within protective…

Q: Which statement is true of chordates? O members of chordata are all in the same genus O all…

A: Chordates are bilaterally symmetrical, coelomic, deuterostomic animals with a well-defined…

Q: Observation of the development of embryos in sea stars shows the mesoderm forming pouches bulging…

A: Sea star classification: Kingdom       :      Animalia Phylum          :      Echinodermata…

Q: Greetings! Provide an illustration and describe the different types of egg as to the distribution…

A: In specific animals that produce eggs, the yolk (otherwise called the vitellus) is the supplement…

Q: It is thought that jaws, which are found in the higher vertebrates, evolved from: a. progressive…

A: Introduction :- A cartilaginous or bony gill arch supports each gill. The gills of vertebrates…