The circulatory fluid in echinoderms is _____. a. blood b. mesohyl c. water d. saline

Q: The rhynchocoel is a ________. a. circulatory system b. fluid-filled cavity c. primitive excretory…

A: Step 1 The phylum Nemertea, also termed as ribbon worms are unique due to the presence of a…

Q: A barnacle is a shelled______ . a. arthropod c. cephalopod b. gastropod d. crustacean

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: a) The cocoon in the earthworm is produced by the b) Most annelids possess tiny bristles called c)…

A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction:…

Q: Based on the Figure a) Draw and label the oral surface of the brittle star b) What are the…

A: Brittle star have regeneration power in their arm that is why they named brittle star . They drop…

Q: Unlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary…

A: Coelomate animals are those that contain a body cavity enclosing coelom with a complete lining…

Q: 13 - Chambered heart occurs in:   A) Leech B) Earthworm C) Snail D) Cockroach

A: The heart performs the function of pumping blood to the different parts of the body. Different…

Q: Flatworms can reach a maximum size of around 40cm. Whilst this is big for a worm, there are…

A: Introduction Flatworms or Platyhelminthes are acoelomate, bilaterally symmetrical, soft bodies…

Q: Cnidocytes (a) are characteristic of sponges (b) are found among cells lining the gastrovascular…

A: The group of eukaryotic and multicellular organisms that are heterotrophic and belong to the kingdom…

Q: A characteristic unique to most species of mammals and no other vertebrates isa. endothermy.b. skin…

A: The group of multicellular, mostly motile, and heterotrophic organisms is called animals. They lack…

Q: Reptiles (a) are all endotherms (b) are amniotes (c) have a great deal of keratin in their epidermis…

A: Vertebrate includes all species of animals within the vertebrata subphylum. These represent the…

Q: Trochophore larvae are characteristic of (a) arthropods (b) cnidarians (c) flatworms (d) mollusks…

A: Answer is d.)  mollusks.

Q: The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites

A: The process by which cells of blastula get arranged to form germ layers is called gastrulation. The…

Q: The amniotes include all but the a. birds. c. mammals. b. reptiles. d. amphibians.

A: The organisms which have a fetal tissue called amnion are referred to as amniotes. It is found…

Q: Monotremes are very primitive mammals because: O a. They lay eggs. O b. They do not provide milk to…

A:

Q: Bivalves, cephalopods, and gastropods are alla. arthropods.b. lophophorans.c. cnidarians.d.…

A: Animal Kingdom is a diverse group, including organisms ranging from non-motile simple sponges to…

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: Poison glands of snakes are homologous to: A. electric organs of fishes B. stings of rays…

A: Among the given options, option (d)is the most appropriate. Poison glands are generally associated…

Q: Unlike bony fishes, amphibians havea. ears. b. jaws. c. a circulatory system.d. a heart.

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: Both cartilaginous and bony fishes have_ a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The name vertebrate comes from the Latin word vertebrae, which refers to the spine's bones. Animals…

Q: Which of the following about caecilians are TRUE? Select one: a. They are legless, worm-like and…

A: Step 1 Amphibia is a class of first terrestrial tetrapods that lead a dual life in water as well as…

Q: Arthropods are the first phyla to possess: A)a brain B)an exoskeleton C)a complete digestive…

A: The organisms belonging to the phylum Arthropoda are characterized by the presence of pairs of…

Q: Nereis is not characterised by presence of a.Monoecious condition b.Ventral, paired, solid nerve…

A: Each body segment of Nereis has a pair of fleshy, lateral appendages called parapodia. They have a…

Q: In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and…

A: Arthropoda belongs to the Kingdom Animalia and is known for having segmented bodies with appendages.…

Q: WORD FILL INS a) All chordates as embryos have the start of gills- what are these called? ____…

A: Vertebrates, tunicates, and lancelets are all members of the Chordates (Chordata) family of animals.…

Q: Unlike eutherians, both monotremes and marsupials(A) lack nipples.(B) have some embryonic…

A: Mammals are warm blooded, have hairs and mammary glands. They are homoiothermous. In the skin oil…

Q: Inarticulate brachiopods

A: Answer: Inarticulate brachiopods = These are the brachiopods which have untoothed hinges , but a…

Q: Annelids and_______ have a closed circulatory system. a. insects c. flatworms b. cephalopods d. sea…

A: Introduction :- The heart pumps blood into the vessels so that it can reach the tissues and organs…

Q: The formation of the neural plate is induced by the ….? Group of answer choices a. notochord b.…

A: The neural plate that has formed as a thickened plate from the ectoderm, which is induced by the…

Q: Earthworms are most closely related to________ . a. tapeworms c. planarians b. roundworms d. leeches

A:

Q: What is this animal? It is a many-segmented arthropod with mandibles and two pairs of legs per…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is A (Millipede) Explanation : Millipedes Are…

Q: Pretend you see an animal at the ocean under a rock. It's 4 cm long. At first you think it might be…

A: The Hemichordate has a worm like body consisting of anterior proboscis, intermediate collar and…

Q: Amphibians O All of the above Usually hatch in a less developed larval form O Migrate south to…

A: Amphibia is a class of vertebrates which spend some part of their life cycle on land and remaining…

Q: 1. Necturus moculosus, example of a salamander skin texture Body division: a broad flat head…

A: Necturus maculosus belongs to the phylum Chordata and the family Proteidae. It is commonly known as…

Q: Both cartilaginous and bony fishes have______ . a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The term vertebrate is derived from the word vertebrae, which refers to the bones that make up the…

Q: A“negatively phototaxic” amphipod will swim:a.away from parasitic worms.b.towards parasitic…

A: Amphipods belong to crustaceans and are mostly detritivores or scavangers. They are aquatic and…

Q: The closest living relatives of hagfishes are_____ . a. snakes c. lampreys b. sharks d. placoderms

A: The organisms that has a common ancestor can share a relativity of closeness among it. These…

Q: Amniotes are adapted to life on land by______ . a. waterproof skin d. amniote eggs b. internal…

A: Sauropsids and synapsids are members of the amniote group of tetrapod animals. They are…

Q: Insects that are primitive have a life cycle that differs from advanced insects in that: O a. They…

A: Answer:  PRIMITIVE INSECTS = primitive means old and those from early ages. primitive insects are…

Q: Which of the following occurs only in chordates O A. notochord B. pharyngeal gills C. dorsal hollow…

A: Notochord and dorsal hollow nerve cord found exclusively in chordates.

Q: ______include the only winged invertebrates. a. Cnidarians c. Insects b. Echinoderms d. Crustaceans

A: Introduction :- Invertebrates are animals that do not have or develop a vertebral column, which is…

Q: In your garden you find a segmented animal with jointed legs. It has a distinct head capsule but the…

A: The tracheal system is the airway  which lead from larynx to bronchi.

Q: Turtles, lizards, and birds belong to one major lineage of amniotes, and_______ belong to another.…

A: Introduction:- Amniotes are vertebrates that grow their embryos in a sac called an amnion. A…

Q: If you got rid of the endostyle of an ascidian, what is most likely to occur? A. no gas exchange…

A: Endostyle: It is a logitudinal ciliated groove on the ventral wall of pharynx which produces mucus…

Q: The water vascular system of echinoderms(A) functions as a circulatory system that distributes…

A: The term echinoderms refer to any marine animal that belongs to the phylum of Echinodermata. Some of…