Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates have an enclosed coelom partially lined with mesodermally derived tissue.  Pseudocoelomates have no enclosed coelom. true or false

Q: Describe the characteristics of the Class Turbelleria by checking all that apply. They are…

A: The objective of the question is to identify the correct characteristics of the Class Turbellaria, a…

Q: Explain the difference between a Coelom and a pseudocoelom.

A: Introduction :- Animals are divided into different phylums , classess and families , on the basis of…

Q: These differ from the other classes of sponges in that their cells are syncytial (multinucleate and…

A: Sponges are comes under the group called Porifera. The presence of pores on their body is a special…

Q: completely converted into the water-vascular system. restricted to a small space around the gonads.…

A: Echinoderms have a spacious coelom (an open, fluid-filled body cavity lined with tissue), large…

Q: Which is NOT ALWAYS true about nematodes? They have a cylindrical body. O They have longitudinal…

A: Introduction The nematodes come under the phylum Nematoda and are called roundworms. They have…

Q: contrasting external characteristics between Phylum Nematoda and Phylum Mollusca.

A: Whenever we observe and compare two organisms we first observe the external feature and these are…

Q: How is a hemocoel different from a true coelom?

A: Organisms with three primary germ layers are called triploblastic while the ones with only two…

Q: Trilobitomorpha Arachnida Decapoda Hexapoda # of Body Segments 2 3 3 # Pairs of Legs several 4 5 3…

A: Arthropods The invertebrate animals that includes insect, crustaceans, spiders etc.

Q: Describe a potential advantage and disadvantage of the cuticle of ecdysozoans.

A: Ecdysozoa belongs to the kingdom Animalia in which it belongs to the group of protostome animals…

Q: hemichordates are said to be the missing link between the invertebrates and vertebrates.

A: A)INVERTEBRATES:- These are those organisms which are without any strong structural support means…

Q: What structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa?

A: The animals are multicellular eukaryotes with heterotrophic nutrition. The unicellular are protozoa,…

Q: Explain how Craniata are paedomorphic for some traits of Chordata larvae.

A: Hemichordates have a number of features that are common between them, chordates and echinoderms.…

Q: Nematodes are acoelomate animals (True/False)

A: Acoelomate animals are those animals which have no coelom or body wall present in them. Thus a…

Q: In what annelid groups are septa between coelomic compartments lost? What advantages does this loss…

A: Annelids are a diverse phylum of segmented worms that belong to the animal kingdom. They are…

Q: Does coelom present in bilateria?

A: A celom is the hallow cavity which is filled with celomic fluid present between the intestinal canal…

Q: Cnidarians may exhibit an “alternation of generations” in their entire life cycle. Describe the…

A: The alternation of generations is a biological phenomenon in which an organism alternates between…

Q: Describe the characteristics of pseudocoelomate roundworms.

A: pseudocoelomate are organisms which have a body cavity that is filled with fluid and the fluid…

Q: Which of the following statements is false? Larval Elopomorphs disperse via ocean currents Several…

A: Lepisosteiformes is an order of ray-finned fish commonly known as gars. Gars are freshwater fish…

Q: Give the order for the life cycle of the hydrozoan, Obelia, starting with the polyp form.…

A: Obelia is a marine and freshwater animal species belongs to the genus hydrozoans. It is also called…

Q: Difference between pseudocelomates and acoelomates?

A: Coelom is the chief body cavity of animals. It is present inside the body to surround and contain…

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: While sampling marine plankton in a lab, a student finds a large number of fertilized eggs. The…

A: Features given in the question are :  1 .the blastopore becomes the mouth: In protostomes, the…

Q: Create a body plan table (Insert → Add Table) for the following animal phyla: Porifera, Cnidaria,…

A: Coelom can be defined as the principal body cavity that is present in most animals. It is located…

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

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

Q: Explain the interaction of cuticle, body-wall muscles, and pseudocoelomic fluid in locomotion of…

A: Most Nematodes move side to side or laterally by contraction of the longitudinal muscles because all…

Q: List 3 advantages of a coelom

A: The coelom is a hollow, fluid-filled cavity found in the metazoans (animals develop from an embryo…

Q: Placozoans are structurally simple. They have no mouth, gut, or nervous system and only a few…

A: Placozoans are free living marine multicellular organism with simplest structure.

Q: Identify and label the parts of the following specimens in Phylum Arthropoda

A: Arthropoda This is the largest phylum of Animalia which includes insects . Over two thirds of all…

Q: Annelid anatomy can be described as “a tube withina tube.” Explain.

A: Annelids are a phylum of worms with invertebrates. They are the worms which are segmented, with over…

Q: List the traits found in the coelomate mollusks.

A: Mollusks are bilaterally symmetrical, segmented, soft-bodied, coelomate animals. The mollusks have a…

Q: The chelicerates have 2 pairs of antennae (True/False)?

A: Arthropods dominate the protostome branch of the kingdom Animalia and are eucoelomate protostomes.…

Q: Which of the following is true about polychate worms (Feed using nematocysts/ part of the ecdysozoa/…

A: All animals are classified according to their presence of characteristics such as characters,…

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: Why is the presence of a coelom advantageous? O it allows room for the development and movement of…

A: The coelom is lined by a muscular tissue called the peritoneum that encloses the internal organs.…

Q: How does ant form its coelom?

A: Ants are insects that belong to the family Formicidae. It comes under the order Hymenoptera that…

Q: Write down the identification and characteristics of individuals belonging to various classes of…

A: Arthropoda: Arthropoda is the largest phylum in the animal kingdom with genetically diverse and…

Q: What is the type of reproduction that occurs in roundworms? What typical feature do nematode sperm…

A: Nematodes are the members of group eumetazoans characterized by bilateral symmetry and three germ…

Q: What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)?

A: Answer: Ecdysozoa : These are the superphylum which includes arthopoda and nematoda , which have…

Q: An arthropod body is described as having three key features: A segmented body, an exoskeleton, and…

A: Arthropods are found in all parts of the world in a wide variety of environments. This phylum…

Q: Flatworms show bilateral symmetry and some cephalization.   True   False   Some parasitic…

A: Carl Linneaus form animal kingdom along with other 4 kingdom. Under animal kingdom, animals are…