Oligochaetes have     well-developed heads     chaetae for locomotion     lungs for respiration     a muscular foot     a radula Which one of the following animals has an open circulatory system?     squid     earthworm     mussel     octopus     polychaete please help with these two question

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: Which of the following is the correct classification for the following invertebrate animal: These…

A: Animal are those organism who don't have cell wall in their cells. They can move from one place to…

Q: Sponges from the phylum Porifera ... [choose the incorrect response}   Question 29 options:   have…

A: Introduction Sponges are the member of the phylum porifera. They are multicellular organism. They…

Q: If a lung occurs in a snail, where would it be located?     mantle cavity     coelom…

A: Phylum Mollusca is known to be the second-most diverse diverse phylum of the animal kingdom. The…

Q: The nervous system is derived from     ectoderm     endoderm     mesoderm     All of the…

A: Hello! Since you have asked multiple question, we will solve the first two questions for you. If you…

Q: Humans are members of the phylum chordata. As such they have a notochord. The notochord in humans;…

A: All the chordates possess the following diagnostic characters either in the embryonic or adult…

Q: Which of the following has indeterminate development?     Echinodermata     Nematoda…

A: This is the growth that is not terminated once a genetically pre determined structure has completely…

Q: Choose all the phyla we looked at in this lab that have a hydrostatic skeleton. nematodes molluscs…

A: Nematodes, mollusca and annelids all the three have hydrostatic skeleton. The hydrostatic skeleton…

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: You find a polychaete in the lower Chesapeake Bay and discover that its coelom is unpartitioned. You…

A: Introduction Polychaeta, Often Known As Bristle Worms Or Polychaetes, Is A Paraphyletic Class Of…

Q: It forms pseudopods that ooze forward or backward. It contracts longitudinal muscles, which puts…

A: Ans- It contracts longitudinal muscles, which puts pressure on the hydrostatic skeleton and causes…

Q: The squid light organ has structural and functional similarities to an eye, including the ability to…

A: Squid belongs to family of cephalopods in the superorder Decapodiformes. The body of squids are…

Q: You find an animal and determine that it has a partitioned coelom. You can then predict that these…

A: The coelom means a body cavity or hollow structure that contains the digestive tract and mani…

Q: Which of the following things is/are true about this organism? has a backbone amniotic egg…

A: The Arctic lamprey, also called as the Japanese river lamprey or Japanese lampern, is a fish that…

Q: Parasitic flatworms have very different bodies than free living latworms. Which of the following are…

A: Free living and parasitic flatworms.

Q: The basic body plan of a mollusk is to have a head, foot, and visceral mass. In the case of the…

A: Cephalopods are members of the mollusk class. Cuttlefish, octopus, squid, or nautilus are few…

Q: Which of the following is the correct classification for the following invertebrate animal: This…

A: R.H. Whitaker’s classification system divided organisms into five major groups, called Kingdoms.…

Q: ich one of the following arthropods has no antennae?     tick     moth     crab…

A: Arthropods are  defined  on the basis of their jointed limbs and  the cuticle made of chitin,…

Q: Which of the following things is/are true about this organism? Phylum Chrodata Subphylum Vertebrata…

A: This organism is Lancelet.  Diagrammatic view of lancelet internal structure. Classification of…

Q: Which of the following is the correct classification for the following invertebrate animal: A…

A: Animals are the organisms which have distinctive feature of absence of cell wall in their cells.

Q: a desert millipede is an invertebrate, explain the mechanism of their protective structure. provide…

A: Answer: Introduction: Millipedes are type of arthropods which are containing two pairs of connected…

Q: Man appealed to the laboratory in Middle Asia. He lived in village in the pise-walled house and…

A: Ticks Ticks are small parasites belonging to the phylum Arthropoda, capable of causing various…

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: Create a dichotomous key for the following organisms Spirobranchus Eunice Caenorhabditis Pheretima…

A: Phylum Annelida includes all the segmented worms belonging to invertebrates. These organisms are…

Q: Which of the following lack setae:(can be more than 1 nemerteans leeches earthworms polychaetes

A: Setae are frequently employed by insects as a high-surface-area substrate over which a pheromone is…

Q: Coelomates are Multiple Choice animals that have no coelom. animals that have two coeloms. animals…

A: Animals are the multicellular eukaryotic organisms that form the biological kingdom Animalia. With…

Q: Which of the following things is/are true about this organism? invertebrate chordate fish Agnathan…

A: The Arctic lamprey is a little fish that can grow to be over 15 inches long but is usually much…

Q: A radula in a gastropod is     a female reproductive structure     A sharp, tooth like structure…

A: Step 1 Gastropods are commonly known as snails and slugs, belonging to a large taxonomic class of…

Q: Question 2 of 12 Which of the following is NOT true regarding nematodes? Select the correct…

A: The nematodes are roundworms that are parasitic and are also found in soil and marine ecosystem.

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: Which is/are true of the mollusc radula a toothed structure is a synapomorphy of Mollusca is…

A: Introduction After the Arthropoda, Mollusca is the second-largest phylum of invertebrate animals.…

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: Which of the following is the correct classification for the following chordate animal: This is a…

A: Tetrapoda is a superclass under the phylum chordata. They are limbed vertebrates and include…

Q: Both insects and tetrapods evolved to live in terrestrial environments. What adaptations do they…

A: Both insects and tetrapods evolved to live terrestrial environments that is they are adapted to live…

Q: a desert millipede is an invertebrate, explain the mechanism of their protective structure. provide…

A: Scientific explanation

Q: Which of the following is the correct classification for this chordate animal: This vertebrate…

A: Amphibians are cold blooded verte­brates having a smooth or rough, naked skin, rich in glands, which…

Q: Members of the phylum Platyhelminthes have two body forms: free-swimming medusa and stationary…

A: The phylum Platyhelminths includes the soft bodies worms that are bilateral and unsegmented…

Q: A comb jelly and a jellyfish differ from each other because a ctenophore ___A ___ , while a…

A:

Q: Which of the following statements regarding dipnoi (lungfish) is true?     amniotes share a more…

A: Lungfish are freshwater  rhipidistian vertebrates belonging to the order Dipnoi. Lungfish are best…

Q: Describe the Nervous organization of the following invertebrate organisms. Which organisms show…

A:

Q: Nephridia are found in     jawless fishes.     lancelets.     annelids.     cephalopods.…

A: Nephridia is an excretory organ which is found in many of the invertebrates, it is just a tubular…

Q: REATE AN ADDITION TO THE GRAPHIC. GIVEN THE FOLLOWING INFORMATION. MOLLUSKS ARE DIVIDED INTO THREE…

A: mollusc is the second largest phylum and its body is covered by shell.they are characterized by the…

Q: Leuconoid organization in sponges is correlated with large body size small body size minimal surface…

A: Leuconoid is one of three body organization category of sponges. They are most complex and largest…

Q: Parasitic flatworms have very different bodies than free living flatworms. Which of the following…

A: Platyhelminthes Includes flat worms(dorsiventrally flattened), most primitive bilateral animals,…

Q: Which of the following are characteristics shared by the phyla Platyhelminthes and the Nematoda?…

A: According to Bartleby guidelines, we are required to attempt first question in case of multiple…

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…

Q: Which of the following is the correct classification for the following invertebrate animal: These…

A: An example of an appendage is an arm or leg. There are few lower invertebrates which do not have a…

Q: Which one of the following arthropods has biramous appendages?     scorpion     mite…

A: An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and paired jointed…

Q: Most anatomists consider bats more specialized than moles; but what important differences can you…

A: Humans are covered with skin, feathers are covered by birds, and fur is covered by bats. But there…

Q: Which phylum of animals shows radial symmetry and has tentacles with stinging cells? Nematoda…

A: Based on the symmetry of the body, animals can be classified into three types, namely radial…

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.