The comments of N. A. Cobb quoted in the opening essay for this chapter make clear just how successful are nematodes. What features of these animals account for their astonishing abundance?

Q: Which is more widespread, nematodes or annelids

A: Nematodes are most numerous of any phylum . About 15000 species of nematodes are present .  Due to…

Q: Explain why amphibians are sometimes called “canaries in acoal mine.”

A: Sentinel species are the animals that used to find out the risks to human beings by providing and…

Q: What is the most unique or interested aspect about nematodes?

A: Here we describe the most unique or interested aspect of nematodes.

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: What are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if…

A: The phylum Nematomorpha (horsehair worms) is constituted of orders: Nectonematoidea (monogeneric…

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: 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: Nematode worms and annelid worms share which of the following features?     presence of a…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: what is the common adaptation in many nematodes enabling them to survive adverse conditions while…

A: Nematodes are the parasites that shows variety of adaptation to survive adverse conditions in soil…

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: What is the significance of having an invariant cell lineage of the nematode,

A: Caenorhabditis elegans is a model organism which help us to study various human diseases. This worm…

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: Why do parasites like trematodes produce such large quantities of eggs?

A: The trematode reproduces asexually inside this mollusk host, creating numerous copies of a second…

Q: Why are flatworms called acoelomates

A: Flatworms belongs to the phylum Platyhelminthes. They are unsegmented, bilaterally symmetrical…

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: Why are parasitic infections of nematodes still common despite our understanding of their biology?…

A: The parasitic can reside in the human body's small intestine. They reproduce by laying eggs and…

Q: Describe Loeffler’s syndrome. Which of the nematodes is the condition associated with?

A: Several factors are associated with different types of infections in the body of a individual. The…

Q: With respect to nematode reproduction and reproductive structures, which of the following statements…

A: Nematodes are roundworms belonging to the phylum Nematoda and part of the Kingdom Animalia. they are…

Q: Which is more widespread: Annelids or Nematodes? Why do you think so?

A: Introduction There is diverse range of organisms living on earth. Some are small, microscopic such…

Q: Both sea squirts (urochordates) and lancelets (cephalochordates) are filter-feeding organisms.…

A: Ascidian or Sea squirt is an invertebrate belongs to Ascidiacea class. These are generally sessile…

Q: Worms are present in the Platyhelminthes, Annelid and Nematode lineages. How is the coelom used to…

A: Coelom is the principal body cavity that located between gut wall and the body wall. Type of coelom…

Q: Compare the whole specimens and cross-sections of Ascaris and Dugesia. How would you differentiate…

A: Ascaris is an example of Nematoda and Dugesia is an example of Platyhelminths. Both are phyla of…

Q: Dracunculus medinensis is a human-infecting nematode on the verge of extinction. What factors can…

A: Dracunculus medinensis, or Guinea worm, is a nematode that causes dracunculiasis, also known as…

Q: If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse,…

A: Arthropods is the largest phylum of Animalia , they are also called ecdysozoans with paired…

Q: Explain how the high pseudocoelomic pressure affects feeding and defecation in nematodes.

A: The pseudocoelom is a fluid-filled body cavity that is situated inside the external body wall of the…

Q: Identify the most distinct characteristics of the following nematodes that would set them apart from…

A: Let us first see what are Nematodes and their classification. Nematodes are thread like creatures…

Q: What are the morphological similarities and differences between nematodes and annelids?

A: Nematodes are referred as roundworms and constitute phylum Nematoda. They are multicellular…

Q: List two characteristics, which help us to distinguish Nematodes from Annelids.

A: Invertebrates  Invertebrates are animals that do not have vertebral column. Ex- annelida, molluscs,…

Q: Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity…

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: Leeches are members of the phylum _ in the clade of bilaterally symmetric animals called _…

A: Leeches are ectoparasites and do not possess any parapodia or setae. They have a peculiar connective…

Q: do any nematodes have similar adaptations due to their needs being met by their hosts

A: * Nematodes are the invertebrates called as roundworms which can be found in habit of  marine and…

Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.