Compare the body plan of Dugesia and cnidarians. Aside from differences in symmetry, what other innovative anatomical features did you observe in Dugesia that were not observed in cnidarians?

Q: three examples of species of cnidarians

A: Cnidarians are distinguished from all other animals by having cnidocytes that fire harpoon like…

Q: name and describe the craniates that are not vertebrates?

A: Vertebrates are known as craniates because of the presence of a skull or cranium. Craniata includes…

Q: What structures of chelicerates are analogous to the antennae of chilopods (centipedes) and other…

A: Introduction: Chelicerates fall under the category of arthropods and consists of scorpions, spiders,…

Q: What type of symmetry do the Echinoderms have? Do they have this type of symmetry their entire…

A: Echinoderms or spiny skinned animals belong to the phylum Echinodermata. They are marineand…

Q: Amphioxus does not possess a vertebral column? yes or no?

A: Amphioxus  They are also known as lanceolate and belonging to the group of invertebrate animals.

Q: Compare Class Maxillopoda and Class Branchiopoda

A: Arthropoda It is a much heterogeneous group including a variety of animals with divergent views…

Q: One difference between the 'fishapod', Tikaalik, and the early tetrapod, Acanthostega, is... Group…

A: Tetrapod development began approximately 400 million years ago in the Devonian Period, with the…

Q: How are the valves of a brachiopod oriented in terms of the dorsalventral axis?

A: Brachiopods belong to the Phylum Brachiopoda, which is a monophyletic group. These organisms are…

Q: Scales of modern teleosts differ from the ancestral state in that they _____.     are thicker and…

A: They are the members of actinopterygians.  They are marked by the body rays on their fins.…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what…

A: Bivalve Foot - The bivalve foot is one singular mass. It do not have a flat creeping sole but is…

Q: In the rainforest you discover a new species that is terrestrial, has determinate development, molts…

A: Introduction  Morphology is the study of physical characters which can be visualized either by naked…

Q: Discuss in detail the external characters of Hemidactylus?

A: Hemidactylus belongs to the kingdom and phylum Animalia and Chordata respectively. They reside in…

Q: What features of typical amphibians prevent them from living entirely on land?

A: Amphibians are the organisms which are vertebrates as they possess distinct backbone. They live…

Q: In what ways are cnidarians important?

A: Cnidarians is that term in which any animal belongs to the Phylum Cnidaria. Cnidarians is that term…

Q: name and describe the two main lineages within the protostome animals?

A: The kingdom Animalia breaks down into two subkingdoms, Parazoa and Eumetazoa. Parazoa includes…

Q: What external anatomical features of amphibians are associated with their dual life on land and in…

A: The word amphibian is a Greek word “amphi” and “bio”. “amphi” means dual or both kinds and “bio,”…

Q: Describe the advantages and disadvantages of thearthropod exoskeleton.

A: The largest phylum of the animal kingdom is Arthropoda that possesses a hard, tough external shell…

Q: Describe how cnidarians defend themselves.

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: Do octopus and squids have exoskeleton?

A: An exoskeleton is an outer cover present on the body of an animal. In most of the animals it is made…

Q: What sarcoptergians or lungfish (if any) are related to amphibians?

A: Ans. In the superclass Tetrapoda ("four limbs"), the vertebrate community that has left the Sea for…

Q: Why are external skeletons important for soft-bodied invertebrates?

A: Skeleton is the robust structure exhibited in the organism which act as scaffold for the body.…

Q: Compare cnidarians and ctenophores, giving five ways in which they resemble each other and five ways…

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

Q: Echinodermata is the first phylum you have examined whose members possess true endoskeletons. What…

A: Echinodermata are called after their spiny skin, and so this phylum has over 7,000 recognized living…

Q: Osteostracans are not included in the Gnathostome clade because

A: Why are the Osteostracans not included in the Gnathostome clade?  Ans : They lack true bone…

Q: Cnidarians are...

A: Ans. Cnidarians are diploblastic.  Option 2nd diploblastic is correct

Q: Why was the medusa stage lost in some cnidarians? Do you think it is more advantageous

A: Solution : In the phylum Cnidaria, which includes jellyfish and sea anemones, polyp and medusa are…

Q: this is dugesia  Compare the body plan of Dugesia and cnidarians. Aside from differences in…

A: Cnidarian and Platyhelminthes (Dugesia) are invertebrate animals that do not contain notochord and…

Q: How do the skin and respiratory systems of amniotes differ from those of their early tetrapod…

A: Amniotes belongs to the kingdom Animalia and phylum Chordata. They belong to the clade of tetrapod…

Q: Agnathans (Jawless FIsh) Look at the image that is attached to this question to answer the…

A: The Agnatha comprises of the jawless fishes, the most primitive group of surviving vertebrates.…

Q: Based on an evolutionary perspective, do you think the present forms of cnidarians are the best…

A: Cnidarians are diploblastic organisms , they have organized tissue level, and digestion is…

Q: How useful is the study of the nature of body cavity and coelom in theclassification of animals?

A: Animal classification is a system of grouping animals by their similar characteristics. It is also…

Q: what type of scales do bony fish and Lancets have?

A: Lancet fish, both of two types of broadly dispersed, deepwater marine fish of the class Alepisaurus…

Q: Are Protostome and Deuterostomes only applicable to tripoblastic animals?Are Cnidarians even…

A: Protostome along with deuterostomes and the Xenacoelomorpha are a group of animals called bilateria.…

Q: Describe the evidence that cnidarians share a more recentcommon ancestor with other animals than…

A: Cnidarians, also known as coelenterates are mostly marine organisms and includes corals, hydras, and…

Q: Cnidarians and ctenophores are considered diploblastic, but why might some biologists label them…

A: The process of embryonic development is characterized by the formation of the primary layers called…

Q: How are the three main arthropod classes characterized according to the presence of antennae?

A: Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as…

Q: Phylum Echinodermata: 1. Briefly describe the general body plan of these animals by stating: a) the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What type of skeletal system do echinoderms have?

A: Echinoderms have the following characteristics- 1. They are radially symmetrical. 2. They are…

Q: Define two form of cnidarians with example?

A: Cnidarians are invertebrate animals, belonging to the phylum Cnidaria. They are characterized by the…

Q: Explain How will you compare and contrast the skeleton of fish

A: The embryos of modern fish and tetrapod look similar . Both modern fish and tetrapod are vertebrates…

Q: Make some observations about archosaurs as a group. What features do they have in common that make…

A: The Archosaur is a subclass that consists of birds and reptiles (the crocodiles) and a few other…

Q: What type of body symmetry does this creature have?

A: The correct Answer is Option D . Bilateral Symmetry .

Q: Do Cnidarians have a simple or complex body plan?

A: Cnidarians:These are the animals of phylum cnidaria. These are carnivores. These animals have the…

Q: Craniata includes animals within Chordata that have a skull.   True or False?

A: Animals can be grouped into chordates and non-chordates. The chordates have a backbone or notochord.…

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: characteristics of cnidarians:

A: Cnidarians are the earliest multicellular animals to have tissue-level organization. Common features…

Q: Describe the origin of tetrapods and identify some of their keys derived traits

A: Tetrapods are four limbed animals . Animlas such as the amphibians, reptiles and mammals with four…

Q: Distinguish between ostracoderms and placoderms. What important evolutionary characters first…

A: Vertebrates comprise all species of animals within the subphylum Vertebrata. A vertebrate have a…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.