Q1 KIDNEY APPEARS FIRST TIME IN WHICH PHYLUM??

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 two phyla in the Deuterostomia are a. Arthropoda and Nematoda. b. Brachiopoda and…

A: The Deuterostoma is one of the major groups, a superphylum in the animal kingdom. They belong to…

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: Which of the following is most closely related to lobsters and what characteristics are significant…

A: Lobsters are a group of crustaceans which are commercially important because they are consumed as…

Q: Which of the following applies to a squid? a. Cephalization c. Complete digestive tract b. True…

A: The differentiation of the anterior end into the head is known as cephalization. It is associated…

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: Which animals lack a true circulatory system?a. cnidarians c. nematodesb. flatworms d. All of these…

A: Step 1 The circulatory system is a system connected with the flow of fluid in the body so as to…

Q: hemichordates are said to be the missing link between the invertebrates and vertebrates.

A: A)INVERTEBRATES:- These are those organisms which are without any strong structural support means…

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: Collar cells (choanocytes) are characteristic of (a) poriferans (b) cnidarians (c) most coelomates…

A: Cnidarians :  for example : hydra, jelly fish etc are aquatic animals, they have cnidocytes to…

Q: A coelomate organism may have which of the following characteristics? a. Circulatory system b.…

A: A coelomate organism may have which of the following characteristics?

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: completely wraps the cavity is called: a) coelom b) pseudocoelom c) acoelom d) Archenteron e)…

A: 5th answer is b

Q: You find a coelomate animal during a field trip and discover that the embryos undergo spiral…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is D

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: What organisms can survive without a mouth, digestive system, oranus?a. cnidarians  b. rotifers  c.…

A: Most of the animals have complete digestive system. The food is taken by mouth and waste is excreted…

Q: 1. Which of the following justifies the expansion of the allantois in shelled amniotes? * a. It…

A: The allantois is a respiratory organ that also functions as a reservoir for excreta. These…

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: 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: 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: 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: Which is not true about Cnidarians? A1. Some cnidarians go through polyp stages and medusa stages A.…

A: Cnidarians are invertebrates such as jellyfish and corals, belongs to the phylum Cnidaria. All…

Q: Pharyngeal gills of enteropneust hemichordates and chordates are A. involved in filter feeding B.…

A: Hemichordates belong to an unique phylum of marine invertebrates that mostly filter feed by their…

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: Match each structure with its descriptions. ____ radula                     a. internal skeleton…

A: Human anatomy and physiology are concerned with how the human body works to keep itself alive and…

Q: 11. Which animals have stinging cells? Group of answer choices a.Cnidaria b.Arthropoda c.Mollusca…

A:

Q: Cephalopods are able to swim for a sustained period Select one True False

A: Cephalopods are marine organisms that have a bilaterally symmetrical body symmetry and have a very…

Q: Pretend you find a clam-like thing with two shells, about 1 inch across. You open it and see a large…

A: Answer  B. Brachiopod

Q: Describe the structural differences between the pleopods and the pereiopods up the prawn. What…

A: Pereiopods are primarily walking legs and are also used for gathering food.They are also the ten…

Q: Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges b. worms and…

A: ANSWER Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges

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

A: Answer is b.)  true coelom.

Q: Although tunicate larvae have a notochord, adult tunicates do not. The reason for this is; The…

A: Even though Tunicates come under the category of Chordates but they do not have notochord.

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: Which of the following organisms would you expect to have the largest surface-area-to-volume ratio?…

A: Introduction The deuterostomes include the echinoderms and the chordates. Deuterostomes are also…

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

A: Chordata is the phylum of the animal kingdom that includes a large number of animal species,…

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: The Haversian canal pattern in dinosaurs suggests that they O A. were poikilotherms B. were similar…

A: Haversian canals are the channels found in bones when the cells replaces the bone with new material.…

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…

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.