Which of the following structural characteristics of a gastrointestinal tract contributes to chemical digestion? A. The typhlosole of an earthworm B. The crop of a bird C. The chelicerae of a spider D. The radula of a mollusc E. All of the above

Q: Although they are related, the digestive system of an earthworm and Ascaris are very different. Why…

A: Ascaris is a roundworm that belongs to the phylum Nematoda. It is a thin, unsegmented, parasitic…

Q: A defining feature of the Ecdysozoa is aa. segmented body.b. closed circulatory system.c. cuticle.d.…

A: The Ecdysozoa is a group of protostome animals that belong to the arthropod, Nematoda, and several…

Q: 8. Which structure is indicated in this photo of a cross section through the middle of an…

A: In earthworms, the median dorsal vessel is the main circulatory structure that is responsible for…

Q: The microscopic extensions at the lumenal aspect of epithelial cells lining the intestinal wall are…

A: Intestinal wall consists of 4 layers: mucosa, submucosa, muscularis propria, and serosa.1. Mucosa is…

Q: Feeding rosettes can be observed on the surface of the sediment and are formed by Group of answer…

A: It is a multiple choice question.

Q: What is true about a gastrovascular cavity? Group of answer choices a. It has generally evolved to…

A:

Q: Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata…

A: Chordate can be defined as the animal that will belong to the phylum Chordata. There is some period…

Q: A paramecium (ciliated protozoan) ingests a poison, the poison inhibits the function of its…

A: Paramecium The slipper like protozo having cillia all arround the cell wall.

Q: The bodies of all insects have major divisions.

A: Answer : Option (b) is correct

Q: If chaetognaths belong to Lophotrochozoa, they would be more closely related to animals like…

A: Chaetognaths are phylum of the predatory marine worms.

Q: The larval stage of a cnidarian is known as a a. medusa. b. planula. c. polyp. d. cnidocyte.

A: Non-chordates are the life forms that do not have any backbone or notochord in their structure.…

Q: Provide two characteristics of the digestive tract for an animal that eats mainly termites

A: Termites are eusocial insects belonging to order Blattodea.

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: Based on how digestion is compartmentalized along the mammalian alimentary canal, what digestive…

A: Tapeworms are found in human intestines, where they feed on partially digested food. Three common…

Q: 1. What is the function of the organ shown below? A. Stores bile B. Produces pepsin and hydrochloric…

A: Introduction: Pancrease is an elongated compound (exocrine and endocrine activity) organ situated…

Q: Choose which is FALSE among the following statements about the Phylum Annelida. A. Annelids have…

A: A. False.  B. True C. True D. False E.True.

Q: A ciliated feeding structure in the larval stage is a characteristic of aa. trochozoan.b.…

A: The systematic classification of animals is necessary for the purposes of identification and…

Q: For question with blanks, choose the combination of answers that most accurately completes the…

A: Step 1 Kingdom Protista or Protoctista is the kingdom of all unicellular and colonial eukaryotes…

Q: One genus in Phylum Platyhelminthes is Turbellaria, which consists of free-living worms with a thin,…

A: They are bilaterally symmetrical, triploblastic, and acoelomate. They could be parasitic or…

Q: Compare the digestive systems of a flatworm and a human. Can you include examplesthe of the…

A: Digestion is a process by which food is broken down into the smaller component the body can absorb.…

Q: Which structure stops large particles from going into the cephalochordates pharynx? A. mucous net…

A: Cephalochordates, urochordates, and vertebrates are the three major groups of chordate animals.…

Q: All of the following statements are relevant to how sponges obtain nutrition EXCEPT: A. Plankton…

A: SPONGES Sponges feeds on particles that usually ranges from 0.1 to 50 um . The food consists of…

Q: With a gastrovascular cavity... A. Digestion is both extra-oral and intracellular B. Food enters and…

A: The simple digestive system found in many organisms with a central cavity connected to an opening is…

Q: Describe the advancements in the specialization of the digestive tract of earthworm in comparison to…

A: Introduction Earthworms are also known as farmers friend. As they improve soil quality and…

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.