Which of the following structures is not a component of the watervascular system of an echinoderm? a. Ossicles b. Ampullae c. Radial canals d. Madreporites

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: Based on the Figure a) Draw and label the oral surface of the brittle star b) What are the…

A: Brittle star have regeneration power in their arm that is why they named brittle star . They drop…

Q: Echinoderms have _____ symmetry as embryos and _____ symmetry as adults. a. radial; radial c.…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: Do echinoderms have respiratory and circulatory systems?

A: Echinoderms have a calcareous endoskeleton with organ-system organization. They are triploblastic…

Q: How are the echinoderms significant to the marine environment? Relate some (at least two) of their…

A: Echinoderms -- Echinoderms are the members of the phylum Echinodermata . Animals have numerous…

Q: Is there a larval stage in echinoderms?

A: The term Echinodermata was coined by Jacob klein in 1738 . Leucport in 1847 established the…

Q: Explain the Characteristics of Echinoderms ?

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

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: Describe three adaptations that have allowed amniotes to become completely terrestrial.

A: Amniotes are basically the organisms that have amnion in their egg. They belong to a clade of…

Q: What environment would you find an echinoderm?

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

Q: What structures did amphibians develop to support the weight of the body against the force of…

A: Amphibians, as their name indicates, are class of organisms that  have adaptations suited for both…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: Contrast the skeleton of an echinoderm with that of an arthropod.

A: The kingdom “Animalia” has several phyla (taxonomic rank: phylum). The organisms of this kingdom are…

Q: What are three derived characters of echinoderms? Describe each.

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

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

A: Presence of notochord and dorsal tubular hollow nerve cord is the main characteristics of chordate.…

Q: Which chordates are craniates, and which of those are alsovertebrates?

A: Craniates are a group of chordates that possess a craniate skull made up of hard bone. All craniates…

Q: What is thought to be the function of the shell morphology in African pancake tortoise?

A: Introduction African pancake tortoises:- are native to East Africa and are found in Tanzania,…

Q: What phylum is considered to be the arthropod's closest relative? What major characteristics do…

A: Annelids are considered to be the arthropod's closest relative.

Q: Describe the endoskeleton and other adaptations seen in echinoderms.

A: Endoskeleton: An endoskeleton is a skeleton that found and develops within the interior of the body…

Q: Which amniotes are endothermic? What are some advantages of endothermy?

A: An organism alludes to something living that has a coordinated design, can respond to boosts,…

Q: Do echinoderms present with cephalization?

A: Cephalization is the formation of a central nervous system in organisms. Cephalization is important…

Q: We discussed the four primary.components of animals' body plans. Describe an echinoderm in terms of…

A: Echinoderms are the class of animal species which belongs to the Phylum Echinodermata  and these…

Q: Inarticulate brachiopods

A: Answer: Inarticulate brachiopods = These are the brachiopods which have untoothed hinges , but a…

Q: Explain how all echinoderms show five-sided radial symmetry when they look so different. How does a…

A: All Echinoderms possess five-part radial symmetry around a central disc. They all possess a very…

Q: Distinguish the following groups of echinoderms from each other: Crinoidea, Asteroidea, Ophiuroidea,…

A: Unlike arthropods, the classification of echinoderms does not currently undergo any radical changes,…

Q: What is a major difference in function of the coelom in holothurians compared with other…

A: The holothurians are commonly called sea cucumbers. They have one distinct feature which separates…

Q: What is the type of digestive system of echinoderms?

A: Jacob Klein (1738) introduced the name Echinodermata meaning Spiny Skinned Animals. Digestive tract…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

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: How are the echinoderms significant to the marine environment? Relate at least three of their…

A:

Q: Why are echinoderms considered part of the Deuterostomes, despite having incredibly unique…

A: Echinoderms are marine, spiny invertebrates belonging to the phylum Echinodermata, superphylum…

Q: c. Describe the mechanism of sea stars' regeneration. d. Give four examples of how echinoderms are…

A: Sea stars are star shaped fish organism of phylum Echinodermata and class of Asteroidea. It has the…

Q: How did the following fish groups evolve? a) Agnatha b) Chondrichthyes c) Osteichthyes d)…

A: Although numerous fossil fishes have already been discovered and documented, they only represent a…

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: Echinoderms are characterized by their spiny skin. What are these spines made of, and from what do…

A: Echinodermata are marine organisms with organ system level of organization. The adult echinoderms…

Q: What is the mot distal part of a crinoid that is associated with feeding? A. brachige B. Pinnules C.…

A: Crinoids are marine animals belonging to the phylum Echinodermata and the class Crinoidea.

Q: In planarians ampulation : can planarians regenerate any body part?

A: Planarian is a free-living flatworm belonging to Platyhelminthes phylum. It belongs to the order…

Q: Which group of echinoderms has a biradial symmetry and tube feet all over its body?

A: Tube feet are one of the little adaptable or flexible cylindrical processes which present in the…

Q: Compare and contrast the symmetry and body shape of the different classes of echinoderms.

A: Phylum Echinodermata has five classes 1. Asteroidea (sea stars) 2. Ophiuroidea (brittle stars) 3.…

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: 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: What characteristic defines a chordate who is also a vertebrate?

A: The animal kingdom is divided into two phyla- Chordata and non-chordata. The phylum Chordata…

Q: Describe the acrosomal reaction in an echinoderm like the purple sea urchin, Strongylocentrotus…

A: Echinoderms are a group of marine invertebrates that belong to the phylum Echinodermata, and has a…

Q: What are similarities exist among Lycopods and horsetails? What are some of the differences

A: The kingdom Plantae includes land plants and green algae. Based on the presence or absence of a…

Q: Match the benefit to the correct chordate adaptation. allows organisms to walk on land [Choose]…

A: Chordates are organism that possess an vertebral column extending from neck to back region.

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.