How does the siphon's action allow the squid to move quickly through water? Explain in 7 sentences.

Q: What adaptations does the squid exhibit that adapt it to its lifestyle? Would it be a successful…

A: The aquatic animals living on substrate or sediments in the bottom of the water body are termed as…

Q: Which of the following is responsible for the process of filter feeding in a sponge? a. flame cells…

A: Filter feeding is the aquatic feeding method in that animals takes various small pieces of prey at a…

Q: Cells of a sponge that have cilia and direct water flow through the sponge are called_____.…

A: Sponges are the members of Phylum Porifera. They are multicellular organisms with pores and channels…

Q: What class under Platyhelminthes contains proglottis ? a)Nematoda b) cestoda c) plasmodium d)

A: Answer is c.) cestoda.

Q: Why are leeches used for the studying nervous system function?

A: The medicinal leech Hirudo medicinalis is a notable model in neurobiology because of its capacity to…

Q: Describe the water vascular system that seastars utilize for locomotion, respiration, and food…

A: Sea stars also known as starfish are the marine invertebrates, belongs to class Asteroidea of phylum…

Q: Are leeches predators or parasites? What reasons would you give for both possibilities?

A: In ecology, predation is the term use to define those organisms who feeds on other organism.…

Q: What is the locomotion in pelagic urochordate

A: Urochordata is a group of animals with a notochord and nerve cord confined to the tail region in the…

Q: egulate the surfac

A: Sponges are a member of phylum porifera. Sponges have four different types of cells Choanocyte…

Q: Explain the internal and external anatomy of a squid.

A: External Anatomy of the Squid: A squid has three principle body parts: the mantle and balance, the…

Q: Briefly explain how spinchcters control these function in the infants when they go from involuntary…

A: The sphincter is a circular muscle that controls the passage of liquids and solids. Sphincters can…

Q: If the lateral cilia of ascidian gill bars were removed, which of the following would be likely to…

A: Ascidia is a genus of tunicates in the family Ascidiidae.

Q: If the lateral cilia of pterobranch tentacles are inactivated what would be the likely consequence?…

A: Pterobranchia are marine invertebrates that live in the ocean flower and are small worm-like…

Q: describe the movement of hydra

A: Hi, Thanks For Your Question.  Answer :  Hydras Are Sessile Animals. They Live By Attaching Their…

Q: Hydra nematocysts Slide: Label the parts A = B = C = D = A

A: Hydras are invertebrates which belong to the phylum Cnidaria. They are found in freshwater bodies…

Q: describe how the filter-feeding in Sponges and tunicates are similar and how they are different?

A: Sponge-feeding is a mechanism through which sponges transfer water through their bodies to receive…

Q: Describe the feeding, ciliary action, locomotion/ mobility of the Rotifer

A: The rotifers are a phylum of tiny and near-microscopic pseudocoelomate creatures known as wheel…

Q: Select the correct answer from the answers provided. All adult helminths produce a. cysts and…

A: Introduction: Helminths belong to invertebrates and possess a characteristic body that is either…

Q: What is the excretory/osmoregulatory organ of mollusks? a. Flame cells b. Malpighian tubules c.…

A: Mollusca is the second largest invertebrate phylum, after arthropoda. It contains about 1, 00, 000…

Q: What specialized cells of tentacles aid in capturing prey?

A: Several organisms such as mollusks, cnidarians, ctenophores, bryozoa, and cestodes contain…

Q: What are pelagic urochordate

A: pelagic urochordates are animals, which can float and swim in open water. Tunicate, also known as…

Q: What are copepods and diatoms. What are their mechanisms for locomotion and gathering energy.

A: Crustaceans are a large group of invertebrates with a wide range of species.

Q: sea star oral 5.The ____________ __________________ is a circular tube that connects to each of the…

A: Echinoderms are a phylum of marine invertebrates that include starfish, brittle stars, sea…

Q: Draw the structure of nephridial system in earthworm?

A: Nephridia carry out the excretion in the earthworm. It is present in pairs in the body’s segments.

Q: Annelids have nephridia whose function i

A: Annelids are the invertebrates belonging to the phylum Annelida, some example of annelids are:…

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: Paramecia that live in freshwater have contractile vacuoles, while those that live in salt water do…

A: It is a single celled protists that are naturally found in aquatic habitats.

Q: Siphonicle neck in ammonoidea is directed forwads Select one : True False

A: Ammonoidea These belong to the class of Cephalopoda. These are extinct marine molluscs which are…

Q: If the lateral cilia of ascidian gill bars were removed, which of the following would be likely to…

A: Ascidians, also known as sea squirts or tunicates, are sac-like marine invertebrates filter feeders…

Q: Define the following with regard to sea anemones: siphonoglyph; primary septa or mesenteries;…

A: The sea anemone (Adamsia) belongs to the phylum Cnidaria and is found attached to the empty shells…

Q: The function of pharyngeal gills includes: gas exchange generating a feeding current eliminating…

A: Pharyngeal gill slits are specific characteristics of chordates. It is described as the repeated…

Q: Briefly explain the mechanism of action of a sea star’s tube foot.

A: Tube feet, also called podia are the small tubular projections on the oral surface of an echinoderm,…

Q: Why is it a problem to the animals lacking siphons to live in the sediment? List two problems.

A: The aquatic molluscs belonging to the classes Cephalopoda, Bivalvia, and Gastropoda contain…

Q: In cephalopods contraction of mantle cavity through the of the mantle force water from the…

A: The study of cephalopods is teuthology teuthology is the branch of malacology. Oxygenated water for…

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: Cephalochordata contains pelagic filter feeders. O True O False

A: The marine organisms develop different mechanisms to capture their prey. The diversity in the marine…

Q: What kind of life do you think the squid lives? Would you expect to find them in the same habitats…

A: Mollusks are soft-bodied invertebrates and they belong to the phylum Mollusca, with a calcium…

Q: please label the visible parts of the internal and external anatomy of the squid shown in the photo

A: Introduction Squid is a type of cephalopods in the superorder Decapodiformes with elongated bodies,…

Q: The excretory structure of the earthworm is, 1. A protonephridium 2. An ananephridium 3. A…

A: Numerous invertebrates have nephridium, an organ used for excretion. Two varieties of nephridium…

Q: describe how its shape can change on a sea anemone and leech

A: Organisms use different strategies in their life processes. Muscles are certain types of tissue that…

Q: Feeding rosettes can be observed on the surface of the sediment and are formed by A. suspension…

A: E. Deposit feeding echinoids.

Q: fishes swim bladders

A: Swim bladder is located in the dorsal cavity lying just under the spinal cord in the coelomic cavity…

Q: Give a short note on pigeon's cloaca?

A: Cloaca is the pigeon's reproductive organ. Cloaca can be defined as the combined opening for the…

Q: Ecdysis is a process that; (Bubble both that apply)

A: Ecdysis is carried out in presence of mounting hormone called ecdysone.

Q: Give the function for the following parts. Operculum Swim bladder Gills Lateral line

A: Fishes are cold blooded animals, typically with backbone, gills and fins. The body of a typical fish…

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.

Q: In most flatworms solid waste is eliminated via the O A. anusS O B. mouth O C. nephridiopore O D. A…

A: It is a multiple choice question.

Q: Can a pork tapeworm survive in water

A: Tapeworms are hermaphroditic and segmented. They have both male and female reproductive organs. They…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.