Explain why echinoderms are more closely related tochordates than invertebrates.

Q: Write about amphibians.

A: A vertebrate is a type of animal that has a spinal cord that is encased by cartilage or bone. The…

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

A: Chondrichthyes includes sharks, rays, and skates, as well as sawfish and a few fish species known as…

Q: What symmetry is represented in echinoderms?

A: There are three types of symmetry- 1. Bilateral symmetry- means that the organism when cut…

Q: Which Animals Are Chordates?

A: Animals are multicellular eukaryotic organisms belonging to kingdom Animalia that are heterotrophic,…

Q: What constellation of characteristics possessed by echinoderms occurs in no other phylum?

A: Echinoderms are an extremely ancient group of creatures reaching out rear to the Cambrian time…

Q: Do echinoderms have respiratory and circulatory systems?

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

Q: Earthworm Compare the posterior segments to the anterior segments in a earthworm internal features

A: An earthworm is a terrestrial invertebrate belonging to the phylum Annelida. They exhibit a…

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: Elaborate three bones that allow the frog to live on land

A: Frog, any of different tailless creatures of land and water having a place with the request Anura.…

Q: Name two ways in which the roundworms areanatomically similar to the arthropods.

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

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

A: The phylum echinoderms is partitioned into five surviving classes: Asteroidea (ocean stars),…

Q: What evidence suggests that radial symmetry in echinoderms was secondarily derived?

A: Radial symmetry means that you cut an organism along any diagonal you will get two equal halves of…

Q: Give advantages that amoeba has over a lizard in relation to their levels of organization

A: The amoeba being an unicellular organism thus a single cell performs all its body functions but in…

Q: Sponges are Radially symmetrical Bilaterally symmetrical Asymmetrical Dorso- ventrally…

A: The animals can be classified into three distinct classes depending on their body symmetry:…

Q: Compare and contrast the roundworm body structure with those of aflatworm and an annelid.

A: The Compare and contrast the roundworm body structure with those of a flatworm and an annelid are…

Q: Describe the features of an animal classified in phylum Annelida

A: To define features of an animal classified in phylum Annelida

Q: Types of eggs in chordates

A: Chordates belong to the phylum chrodata and are the part of animal kingdom. Chordates posses…

Q: Explain why echinoderms and chordates are nowconsidered to be closely related.

A: Echinoderms are the most closely related phylum  to the phylum Chordata , which includes many…

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: illustrates four key characters ofchordates: a notochord; a dorsal, hollow nerve cord; pharyngeal…

A: A chordate is an animal of the phylum Chordata. During some period of their life cycle, chordates…

Q: Explain syncytial blastoderm?

A: In most of the insects, superficial cleavage occurs in which the mitosis occurs without cytokinesis,…

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: Describe some ways that crocodilians are similar to birds

A: Crocodilia are a small group of large, carnivorous aquatic animals that have remained essentially…

Q: Explain why it is necessary to know the life history of a tunicate to understand why tunicates are…

A: Tunicates are members of the subphylum Urochordata and phylum Chordata. They are small marine…

Q: Which structure(s) occur ONLY in chordata? (check all of which are true) A. Notochord B. Dorsal…

A: Chordates are phylum of animal kingdom which is bilaterally symmetrical consisting of organ level of…

Q: What evidence suggests that ancestral echinoderms were sessile?

A: Phylum Echinoderms include organisms that are exclusively marine. The have spines that stick out…

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: Cephalopods are the only mollusks (with segmented bodies/have a mantle that secretes a shell/with a…

A: Mollusca are designated as the second-largest phylum of the animal kingdom after Arthropoda. They…

Q: Describe two adaptations that have enabled insects tothrive on land.

A: All insects belong to class Insecta of phylum Arthropoda. Many insects are very beneficial to…

Q: Compare and contrast insects with arachnids and myriapods.

A: Invertebrates with an exoskeleton, segmented bodies, and coupled hinged legs are known as…

Q: Give one example of each of the four Vertebrate Classes, which are grouped under the Amniotes.

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

Q: The arthropods have a metameric body with segments organized into functional groups called

A: In this question, we have to answer a metameric  body with segments organised into functional groups…

Q: Tetrapods evolved from_______ . a. sharks c. lobe-finned fishes b. teleosts d. placoderms

A: All extant and extinct creatures that evolved from the last single ancestor of amphibians, mammals,…

Q: Describe the forams and actinopods, and explain why many biologists classify them in the rhizarian…

A: Introduction The Rhizaria are a nebulous supergroup of primarily unicellular eukaryotes with a large…

Q: Give four examples of how echinoderms are important to humans

A: The animal kingdom is very large. It consists of a wide variety of animals that differ from each…

Q: Explain how the features listed in Table 1 serve as adaptations that might improve the survivability…

A: The animal body is a very complex creature made up of several systems. Each system in the body has a…

Q: Are snakes tetrapods? Explain.

A: Tetrapods includes land vertebrates with two pairs of pentadactyl limbs, cornified skin and lungs.…

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: 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: 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: Members of which phylum are known as "segmented worm" Write about their body symmetry, mode of…

A: The segmented worms belong to the phylum Annelids.  Annelids are also known as ringed worms. It is a…

Q: ain the difference in body plans between cephalopods and gastropod

A:

Q: compare and contrast the external anatomy of an insect from an arachnid.

A: INTRODUCTION Given below is the comparison between insects and arachnids.

Q: Do echinoderms have an excretory system? How is excretion done in these animals?

A: We answer only the first question as you have posted multiple choice questions. If you need help…

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.