Q: What are the spaces in between traceculae important for?
A: Trabecula can be defined as the small, microscopic, tissue element that occurs in the form of a…
Q: How does the siphon's action allow the squid to move quickly through water? Explain in 7 sentences.
A: The principle of siphoning. Surface tension squeezes the liquid stream in to the different drops…
Q: What external features make scorpions appear so menacing?
A: Scorpions are defined as any of various nocturnal arachnids that belong to the order Scorpionida and…
Q: sea star How does a sea star protect its tube feet?
A: Seastar: Seastar is also known as starfish. It belongs to class Asteroidean and it is star shape…
Q: What do you suppose the worm is seeking or avoiding?
A: Worms belong to the Lophotrochozoan Branch of the protostomes.
Q: What does Hemidactylus mean?
A: Geckos are reptiles and are found on all the continents except Antarctica. These colorful lizards…
Q: Which cells give tentacles of Gonionemus their rough surface?
A: Phylum Cnidaria of the animal kingdom includes radially symmetrical organisms with two primary germ…
Q: How is the extracorporeal digestion associated to predation in arachnids?
A: Arachnids refer to joint-legged animals which are invertebrates. Some examples are spiders, ticks,…
Q: What is the function of Jacobson’s organ of snakes?
A: Order Squamata includes snakes, lizards, and amphisbaenians. The snakes are considered as the…
Q: How do ctenophores swim, and how do they obtain food?
A: Ctenophores comprise a phylum of invertebrates that survive in the marine waters worldwide. It is…
Q: What are the disadvantages of a flatworm’s digestive system having only one opening?
A: Flatworms are a soft-bodied group and are flattened invertebrates. The species of flatworms are…
Q: What are some functions of suckers?
A: The organisms of the ecosystem have significant properties. Depending upon the different features of…
Q: Concerning digestion how are poriferans characterized?
A: The members of phylum Porifera include sponges. These are multicellular organisms that have channels…
Q: What feature of body-wall muscles in nematodes requires a high hy-drostatic pressure in the…
A: The nematodes also known as roundworms constitute the phylum Nematoda. These are the most…
Q: How do chaetognaths feed?
A: The word chaetognaths are derived from the Greek word chaite, long flowering hair, + gnathos, jaws.…
Q: How do animals with pseudocoelom digest their food?
A: The pseudocoelom is a fluid-filled body cavity lying inside the external body wall that bathes the…
Q: What are zoospores?
A: Motile spore that is asexual and uses its flagella for its locomotion is known as zoospores.Zoospore…
Q: What is the excretory matter in scoliodon ?
A: Scoliodon is cartilagenous fish which belongs to the phylum vertebrata of class elasmobranchii and…
Q: Which myriapods occur in moist soil or leaf litter?
A: Myriapoda belongs to the subphylum of the arthropod. The myriapod is terrestrial primarily and…
Q: How does an entoproct differ from an ectoproct?
A: In crustaceans like crayfish, a sac like organ called statocysts occurs that opens to the surface by…
Q: How do annelids feed, exchange gases, and move?
A: Annelids are the phylum of animal kingdom that represent the segmented body also known as segmented…
Q: How does digestion in cnidarians differ from digestion in sponges?
A: In cnidarians. Digestion is extracellular followed by intracellular digestion
Q: Which part of opuntia is modified to form spines?
A: Plants do not show locomotion, so in order to survive in the environment, they undergo several…
Q: What body form do sea jellies exhibit, medusa or polyp? How do they catch their food?
A: Sea jellies are the invertebrate animals belonging to the phylum cnidaria. They do not have brains,…
Q: What specialized cells of tentacles aid in capturing prey?
A: Several organisms such as mollusks, cnidarians, ctenophores, bryozoa, and cestodes contain…
Q: Digestion in Cnidarians is extracellular and intracellular. Is the statement correct? Explain
A: The phylum Cnidaria incorporates creatures that show radial or biradial evenness and are…
Q: What is the purpose of gill slits?
A: Gill slits are defined as the individual openings to the gills which lack a single outer cover.…
Q: How do sea star tube feet attach to substrates?
A: Tube feet are also called podia and these are small mobile tubular projections on the oral front of…
Q: Which is the typicalfeature of the hookwormsrelated to the way they obtainfood and explore the host?
A: Both Ancylostoma duodenale and Necator americanus have mouthparts with hooks or “enamel” that
Q: What are the layers involved in the formation of a hydra bud
A: Life originated in the waters in the world. The waters house all types of organisms. Planktons,…
Q: What type of fish scales regenerate fast? What type of aquatic environment they are in? Are they…
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Q: What is tape worm and its structure?
A: Worms can be divided into several groups, but are still technically decomposers. The first of these,…
Q: What is clasper in scoliodon?
A: Scoldion or the Dogfish belongs to the shark family.
Q: How do adult hookworms get into the intestine?
A: Hookworm is a parasite that causes infection in people of all ages. It is more likely to occur in a…
Q: What advantages are associated with segmented bodies and appendages?
A: The term segmentation in biology means to duplicate the organs or body parts, like arms and legs.…
Q: Which worms can be found in the eye? Which cause blindness?
A: Step 1 Eye worms are most often the type of parasite that may be lodge in an individual’s eyes or…
Q: Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory…
A: Poriferans are generally known as sponges. The sponges are separated from the metazoan by an early…
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: Echinodermata / star fish On which surface would you find the mouth?
A: Echinoderms are the invertebrate chordates included under the largest clade characterized by…
Q: What causes the loss of spines in lake stickleback fish?
A: Sticklebacks belong to family of fish that belong to the class Actinopterygi. They are commonly…
Q: How does the excretory system of nematodes work?
A: Nematodes are the members of group eumetazoans characterized by bilateral symmetry and three germ…
Q: Where do kinorhynchs live?
A: Kinorhynchs are tiny, spiny, clear, yellowish or reddish worms. They usually have 13 body segments:…
Q: Where are the spines/spinelets of Blue sea star located ?
A: Blue sea star belongs to the Ophidiasteridae family.
Q: What is the function of the Glizzard in a worms body.
A: The worms gizzard is an oval, thick walled and highly muscular organ lying in the 8th -9th segment.
Q: In what habitats would you encounter tardigrades?
A: Tardigrades are semi-aquatic animals so they can survive in watery as well as terrestrial…
Q: how does a light-colored exoskeleton make beetles better adapted to the environment?
A: Introduction Exoskeleton:- It is a rigid or articulated envelope that supports and protects the soft…
What function other than feeding do suckers serve?
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