Why are echinoderms used as indicator species in marine environments?

Q: What advantages favored the evolution of tapeworms’ long, flat shape?

A: Tapeworm belongs to the Phylum Platyhelminthes commonly known as flatworms. The organisms belonging…

Q: How does increasing the sea level affect each species of barnacle?     How are the barnacles…

A: A barnacle belonged to the subphylum Crustacea and is related to crabs and lobsters. Barnacles are…

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: 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: List four characteristics of teleosts that contributed to their incredible diversity and abundance

A: Teleosts belong to the class neopterygians. They include modern bony fish, which represent nearly…

Q: Barnacles can move as adults. True or False?

A: Step 1 - False . Barnacles do not move as adults but remain attached to their substratum ( termed as…

Q: Why is the madreporite of sea cucumbers internal instead of external like other echinoderms?

A: The madreporite  is made up of calcium carbonate and is covered in pores, looks grooved like some…

Q: Explain the difference between mictic and amictic eggs of rotifers. What is the adaptive value of…

A: The members of the phylum Rotifera have can range in the length from 40 micrometers to 3…

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: Where do Petromyzon and ammocoetes live?

A: Biodiversity is the diversity in living organisms that exists in a particular region or area. It…

Q: What environment would you find an echinoderm?

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

Q: Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom…

A: Nematodes:         Nematodes can be otherwise known as roundworms, which comes under the hood of…

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: how does nematodes found in the lungs of a toad impacts the toad's life?

A: Nematode, also called roundworm, any worm of the phylum nematoda. Nematodes are among the most…

Q: why would a pinniped likely be able to travel farther in water than on land

A: Diverse living organisms inhabit our oceans, coasts, and estuaries. These species can home in size…

Q: Why are robber crabs land invertebrates?

A: Robber crab which is also known as coconut crab, scientific name Birgus latro , it is a species of…

Q: What are the basic morphological features of echinoderms?

A: The Echinodermata is a phylum in the kingdom Animalia and the members of this phylum is called…

Q: How many pairs of legs does a millipede have?

A: The millipede is not an insect because it has more than 6 legs. He has more than eight legs, so he…

Q: What factors support the placement of phoronids and brachiopods as sister taxa?

A: The tree phyla-Phoronida, Ectoprocta, and Brachiopoda-possess a crown of ciliated tentacles, called…

Q: Identify the distinguishing characteristics of echinoderms.

A: Step 1 Kingdom Animalia or metazoan includes all animals of the two kingdom classification except…

Q: How do centipedes capture and subdue prey?

A: Centipedes are classified under the class Chilopoda. Their bodies are segmented into a few to 177…

Q: based on the picture, what is the synamorphic character of echinoderms and hemichordates?

A: A synapomorphy is a shared, derived trait shared by an ancestor and its progeny. A character, often…

Q: Explain why and how echinoderms are used as indicator species in marine environments.

A: Answer:  echinoderms are one if the important invertebrate as they provide oxygen at the bottom of…

Q: What is a tongue worm, and where would it be found?

A: Tongue worms are classified as the members of Pentastomida under the Phylum Arthropoda, because they…

Q: What are the importance of trematodes/flukes in ecology?

A: * Trematoda is class belongs to phylum Platyhelminthes with including two groups of parasitic…

Q: what is oldest invertebrate on earth planet?

A: Arthropoda is the largest phylum of the invertebrates, they contains insects molluscs etc.  Body 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: How does increasing the sea level affect each species of barnacle?

A: Barnacles are marine crustaceans which are sessile marine animals. They live in the intertidal zone…

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: How does changing the magnitude of tide level change affect the population of barnacles? Is it the…

A: Barnacles are shelled creatures that attach themselves to firm surfaces along the seashore (docks,…

Q: What is the type of asexual reproduction that occurs in hydras?

A: Asexual reproduction: This is a type of reproduction where one parent can give rise to offspring…

Q: What are some representatives of the echinoderm phylum?

A: The representatives of phylum Echinodermata are known as echinoderms. 'Echinos' means spine and…

Q: How do we know that echinoderms were derived from an ancestor with bilateral symmetry?

A: Echinoderms got this name from Greek word echinos means spiny and dermos  means skin. Phylum…

Q: How has paedomorphosis been important to evolutionary diversifi-cation of salamanders?

A: Phylogenetic evolutionary history consists of the analysis of the sequences of the common ancestors…

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: What kind of tools did Australopithecus robustus have that researchers believe were used to dig into…

A: Introduction: A group of fossil hominins known as the "robust" australopiths lived in East and…

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: How are the symmetry and the nervous system characterized in echinoderms?

A: Echinoderms are marine invertebrates that includes bilateral animals like star fish, sea urchins,…

Q: How do terrestrial arthropods of the subphylum Hexapoda impact the world’s food supply? Provide at…

A: Kingdom Animalia contains all animals. It is the largest kingdom of Animalia as compared to other…

Q: Do echinoderms present internal or external fecundation? Is there sex division among individuals?

A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…

Q: How has frugivory shaped the evolution of oil birds?

A: Evolution is the process by which organisms inherit modified characters over a period of…

Q: What is the importance of torsion and shell coiling in gastropods along with their evolution?…

A: Torsion is the process in which the mantle cavity twists 180 degree with respect to the head and…

Q: Describe the process of torsion in gastropods, and explain its significance.

A: The gastropods, normally known as snails and slugs, have a place with an enormous ordered class of…

Q: What are some advantages of freshwater clams producing parasitic larvae that attach to the gills of…

A: Glochidia, parasitic larvae of freshwater clams, attach themselves to the gills and skin of fish.

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.