Bioluminescence, extracellular and intracellular digestion and reproduction only by sexual means are characteristic features of Silkworms Sea walnuts Flatworms Roundworms

Q: Four of the five features listed below are characteristic of cnidarians. Select the exception. a.…

A: Cnidarians is a phylum of Kingdom Animalia. In this phylum, aquatic animals are present which lives…

Q: What are shared characteristics of all Molluscs? Choose All That Apply visceral mass mantle muscular…

A: Mollusc is the second largest phylum in animal kingdom. They can be terrestrial or aquatic. They…

Q: Tapeworms posses both male and female reproductive organs. What is the name given to such organism?…

A: Sex is the combining and mixing of Chromosomes during the formation of offspring.

Q: Which of the following is NOT a characteristic of nematodes? View Available Hint(s) O Adult…

A: Nematodes are worms that are very small and slender, measuring about 5 to 100 m thick and 0.1 to 2.5…

Q: A single tapeworm may produce thousands of eggs (over 50,000!). What organs are responsible for…

A: A tapeworm has 50,000 eggs per worm and they are found in the human pancrias.

Q: Which of the following is the basic reproductive found on tapeworms? Multiple Choice Hook Scolex…

A: The name tapeworm is due to its elongated tape-like appea­rance. It may attained length of several…

Q: Cuttlefish pen (invertebrate endoskeleton) is composed of (a) chitin (b) collagen (c) calcium…

A: The phylum mollusca (invertebrates) shows the presence of shell. The shell may be internal or…

Q: The tapeworms (cercomeromorpha) are not considered to be segmented animals because;

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

Q: Serial segmentation is a key characteristic of which of the following phyla? a. Mollusca b.…

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: The organ that functions to coat annelid worms with a mucus-derived cocoon is the uterus O clitellum…

A: Annelid worms These worms belong to the phylum Annelida. These are also called segmented worm, that…

Q: Use the cnidarian life cycle diagram in Figure 33.8 to determine the ploidy of a feeding polyp and…

A: Ploidy refers to number of copies of an autosome present in a cell of an organism. If single copy of…

Q: v [ Choose ] Tunicata Trematoda Cestoda siphons, tadpole larva (some species) Cephalochordata…

A: Answer. Cestoda and Trematoda are classes that belong to the phylum Platyhelminthes. Examples…

Q: the industrial and commercial importance of earthworms.

A: Earthworms are segmented worms that belong to the phylum Annelida. These are the common inhabitants…

Q: Examine figure 37.9 and its caption carefully. Which proglottids, mature or gravid, occur closest to…

A: Step 1 Platyhelminthes is a phylum of dorsoventrally flattened, acoelomate but triploblastic animals…

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: 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: Flatworms (platyhelminthes) possess a a. metanephridial system  b. protonephridial system c.…

A: Platyhelminthes are flatworms having many classes of triploblastic and are acoelomate flatworms that…

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: The male copulatory organ of turbellarians is called a

A: Turbellarians belong to phylum Platyhelminthes.Temnocephala lamothei ,Dugesia aenigma,Dugesia…

Q: Describe in details the adaptations for parasitism in flatworms (class Cestoda and Trematoda).

A: Introduction :- Flatworm parasitic adaptation refers to the changes and adjustments that occur in…

Q: Earthworms are segmented animals. All of the following are present on/in most segments of an…

A: Origin The origin of earthworms was said to be on earth around 200 million ago. Their ancestors were…

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: Are all flatworms parasite? What are some of the special adaptations seen in the parasitic classes…

A: About 80% flatworms parasitic in nature. Parasitic adaptation  enhance the survival and reproduction…

Q: Miracidium is a larval stage in the development of… Taenia solium Echinococcurs granulosus Ascaris…

A: Miracidium is the larvae stage in the development of Fasciola hepatica(4). It is the initial larvae…

Q: Both Porifera and Placozoa possess epithelial tissues. True False

A: ''Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Aquatic molluscs have a blood vascular system & metanephridia so they must also possess a…

A: The Mollusca Phylum has over 160,000 species, 90,000 of which are still alive. Some shells were…

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

A: Ecdysozoans are a group of protostome animals that include nematodes, arthropods, and numerous…

Q: Which phylum is characterized by a "tube within a tube" structure? O Echinodermata Mollusca…

A: Tube within a tube phenomenon is referred to only one opening for ingestion and one opening for…

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: The embryonic development in nematodes can have up to __________ larval stages. a. one b. two c.…

A: Nematodes belong to phylum nemathelminthes and class nematoda. Most nematodes are free living in…

Q: Turbellaria are flatworms that have most of their body filled with: O a. Alarge complex reproductive…

A: Turbellaria belongs to phylum Platyhelminthes and they are so named because they create turbulence…

Q: Xenacoelomorpha are characterized by all of the following except: protonephridia hermaphroditism…

A: Xenacoelomorpha is a invertebrate belonging to a small phylum and have two sister groups namely…

Q: People eat raw or undercooked pork containing cysts of tapeworm larvae (cysticerci) In the…

A: Tapeworm;  Preventive stages are  1 Stage 1: you can prevent the infection by not eating uncooked…

Q: Aquatic molluscs have a blood vascular system & metanephridia so they must also possess an…

A: Introduction  Any Molecule That Improves The Oxygen Carrying Capacity Of Blood Is Referred To As A…

Q: Gonozoids continue the reproductive cycle by budding medusae. About how many maturing medusae are…

A: These are rare in number and only found around the hydrocaulus's base. The gonozooids are the…

Q: Give two specific anatomical features of free-living and parasitic flatworms and relate it to their…

A: Flatworms come under the phylum Platyhelminthes. Some important and salient features are: They are…

Q: General characteristics of protozoans Internal and external structures Feeding…

A: Protozoa are unicellular organisms. They range in size or shape from an amoeba, which could also…

Q: Which of the following Amebic trophozoites best fit the following descriptions ? Motility: Sluggish…

A: Intestinal parasites cause several diseases in humans.

Q: Which of the following Phylum arealso called flatworms?A. Mollusca      B. ChordataC. Ctenophora  D.…

A: The animal kingdom is divided into many phyla. The major species of the animal kingdom include…

Q: A unique feature of the gastropods is that they undergo the process of embryonic torsion. This…

A: The Gastropod group of animals belong to the Kingdom Mollusca. They are characterized by the…

Q: Name the animal shown in this picture. O Nematoda O Mollusca OAnnelida O Cnidaria OPlatyhelminthes

A:

Q: A multilayered cuticle that is periodically molted characterizes A. nematodes B. kinorhynchs O C.…

A: Despite the current use of molecular tools, the evolutionary links between gastrotrichs and other…

Q: Xenacoelomorpha are characterized by all of the following except: hermaphroditism acoelomate body…

A: Introduction: Xenacoelomorpha is a minor phylum of invertebrates that includes two sister groups:…

Q: Match the animal group with its body plan

A: All the living organisms are classified on the basis of various physical and internal features. The…

Q: Define the life cycle of the pinworm and a roundworm.

A: Introduction: Enterobius vermicularis (pinworm) and Ascaris lumbricoides (roundworm) are the…

Q: Earthworm Cross Section (Annelid Cross Section) Describe each function in the earthworm…

A: Earthworm is a reddish brown terrestrial invertebrate that in habits the upper layer of moist soil.…

Q: Crustacea manage to swim backward by means of their (choose two) telson uropods siphon gill bailers…

A: Answer : telson and uropods are correct. - telson forms the part of tail fan in crustaceans. When it…

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.