In flatworms gas exchange, nutrient transport, etc. involves diffusion alone a blood vascular system a pseudocoelom a coelomic circulatory system

Q: Compare and contrast the body characteristics of a flatworm, nematode, and annelid in the figure…

A: Flatworms are also known as also known as platyhelminthes characterized by their flat body.…

Q: Krill are an example of Mixoplankton Pleuston Meroplankton

A: d is the correct answer. Plankton are comprised of two main groups  permanent members of the…

Q: Segmentation in the earthworm is not exemplified bya. body rings.b. coelom divided by septae.c.…

A: Earthworm is a reddish brown terrestrial invertebrate that inhabits the upper layer of the moist…

Q: The cirripedia are used for the purpose of grindng food particles prior to their entry to the…

A: It is an arthropod belonging to the infraclass Cirripedia of the subphylum Crustacea. It is related…

Q: Which Hymenoptera lives in secret

A: Hymenoptera is one of the largest orders of insects and includes species of bees, wasps, hornets,…

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: egulate the surfac

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

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: Which of the following is the basic reproductive found on tapeworms? Multiple Choice Hook Scolex…

A: The name tapeworm is due to its elongated tape-like appea­rance. It may attained length of several…

Q: • This is an organism belonging to the phylum [Select ] [Select ] Nematoda • This is [Select]…

A: *In figure we can see that body is filled large fluid cavity and it is not lined by coelomic…

Q: Explain functions of each of the following in earthworms: pharynx, calciferous glands, crop,…

A: Earthworms are invertebrate living organisms under the phylum annelida. The body of an earthworm is…

Q: Cephalopods (squid, octopus, etc) Produce ink from a gland near the anus Use gills, located under…

A: Answer. The correct answer is an option (E) All of the above. Cephalopods belong to the phylum…

Q: What are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if…

A: The phylum Nematomorpha (horsehair worms) is constituted of orders: Nectonematoidea (monogeneric…

Q: Use the cnidarian life cycle diagram in Figure 33.8 to determine the ploidy of a feeding polyp and…

A: Ploidy refers to number of copies of an autosome present in a cell of an organism. If single copy of…

Q: It is the body fluid cavity in insects

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: If a turbellarian worm (flatworm) were to produce offspring that were thick and round; The offspring…

A: The Platyhelminthes are acoelomate flatworms. Phylum Platyhelminthes consists of three major groups:…

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: elminthes Nematoda Mollusca Annelida Arthropoda Echino Mantle and muscular foot Segmented jointed…

A: Introduction :- Cladistics is one of the approaches to classify the organisms . In this , organisms…

Q: The male copulatory organ of turbellarians is called a

A: Turbellarians belong to phylum Platyhelminthes.Temnocephala lamothei ,Dugesia aenigma,Dugesia…

Q: Placozoans are structurally simple. They have no mouth, gut, or nervous system and only a few…

A: Placozoans are free living marine multicellular organism with simplest structure.

Q: In spiders, excretions of wastes from the body is handled by (mark all that apply) the Malpighian…

A: Spiders are members of the chelicerates group, the arachnids. They are the largest order of…

Q: State the nematodes that a lung phase in their life cycle.

A: Helminths are multicellular eukaryotic invertebrates that have tube-like or flattened bodies that…

Q: Oligochaetes have     well-developed heads     chaetae for locomotion     lungs for…

A: Oligochaetae is a subclass of animals in the phylum Annelida, which is made up of many types of…

Q: If you had minimal resources to survive a disease related quarantine, as we’re currently…

A: Quarantine is the isolation of individuals that have arrived from an infectious disease affected…

Q: • This is an organism belonging to the phylum [Select ] [ Select ] Nematoda • This is [Select ]…

A: Since this question contains multiple parts, we will solve the first part for you. We request you to…

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: 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: Unlike the turbellarians earthworms have a complete digestive system. This means that;

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: Which phylum is characterized by a "tube within a tube" structure? O Echinodermata Mollusca…

A: Tube within a tube phenomenon is referred to only one opening for ingestion and one opening for…

Q: Bioluminescence, extracellular and intracellular digestion and reproduction only by sexual means are…

A: Cell is the basic unit of life. Based on the number of cells an organism may be prokaryotic or…

Q: Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates…

A: Triploblastic animals are animals with a body cavity and body plan, where their body cavities are…

Q: Coelomate animals with a partitioned coelom likely possesses. a metanephridial system secretion…

A: Answer - Both proto and metanephridia

Q: The embryonic development in nematodes can have up to __________ larval stages. a. one b. two c.…

A: Nematodes belong to phylum nemathelminthes and class nematoda. Most nematodes are free living in…

Q: Sponges show Select the correct response: Tissue level of organisation None of these Protoplasmic…

A: Sponges: sponges are the most primitive multicellular organisms belongs to phylum porifera. These…

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: Give two specific anatomical features of free-living and parasitic flatworms and relate it to their…

A: Flatworms come under the phylum Platyhelminthes. Some important and salient features are: They are…

Q: Annelids have (a): a. pseudocoelom. b. true coelom. c. no coelom. d. none of the above

A: Answer is b.)  true coelom.

Q: Nematodes differ from annelids in that they are segmented. they are triploblastic. they have a…

A: Nematodes are found in a variety of environments, such as soil, marine, and freshwater, and various…

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: Annelids (include leeches, earthworms and polychaete worms/ use their coeloms as hydrostatic…

A: Annelida is a group of segmented worms. They have a long and segmented body. Annelids are…

Q: If an animal has coelom, you also would expect it to exhibit: cephalization bilateral symmetry a…

A: The coelom is the fundamental body cavity in many animals and is situated inside the body to…

Q: Vinegar eels describe their movement and describe its movement of earthworm

A: The earthworm is a terrestrial invertebrate that belongs to the phylum known as Annelida. They…

Q: In spiders, pedipalps are useful for: (mark all that apply) osmoregulation palping the peds sexual…

A: As per our policy we are answering the only one question.  Rest of the question kindly repost the…

Q: What part of the earthworm's digestive system would you see in a cross-section anterior to the…

A: An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. Earthworms are commonly…

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: The cnidocytes found in hydras and jellies are; Cells that secrete digestive enzymes Stinging cells…

A: The cnidocytes are known as the 'Stinging cells', which are special cells of the phylum Cnidaria.…

Q: A unique feature of the gastropods is that they undergo the process of embryonic torsion. This…

A: The Gastropod group of animals belong to the Kingdom Mollusca. They are characterized by the…

Q: Relative to asconoid organization in sponges the syconoid form exhibits smaller body size increased…

A: Sponges comes under phylum Porifera and they have three different types of body plan. 1)Asconoid…

Q: Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity…

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: Crustacea manage to swim backward by means of their (choose two) telson uropods siphon gill bailers…

A: Answer : telson and uropods are correct. - telson forms the part of tail fan in crustaceans. When it…

Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.