Why is bilateral symmetry of adaptive value for actively motile animals?

Q: What are shared characteristics of all Molluscs? Choose All That Apply visceral mass mantle muscular…

A: Mollusc is the second largest phylum in animal kingdom. They can be terrestrial or aquatic. They…

Q: What type of symmetry do the Echinoderms have? Do they have this type of symmetry their entire…

A: Echinoderms or spiny skinned animals belong to the phylum Echinodermata. They are marineand…

Q: When and how did sponges develop their skeletons?

A: The ancient sponge appeared about 2.5 millions years ago  the first animal . Coming in many sizes…

Q: What is the main evolutionary novelty presented by annelids?

A: Lamarck coined the term Annelida for these ringed animals. He established this phylum as the first…

Q: How is a hemocoel different from a true coelom?

A: Organisms with three primary germ layers are called triploblastic while the ones with only two…

Q: How can the features of the arthropod exoskeleton explain the terrestrial adaptation of some species…

A: The phylum Arthropoda is characterized by the presence of jointed legs, a segmented body, and an…

Q: Is reproduction in sponges sexual or asexual? What is the evolutionary advantage of the occurrence…

A: Budding, gemmation, or fragmentation (regeneration) are examples of asexual reproduction in sponges,…

Q: Why are porriferans asymetrical? Cnidarians radial? The rest bilateral? (based on evolution)

A: It is required to provide the reason for assymetrical nature of poriferans, radial symmetry of…

Q: Cuttlefish pen (invertebrate endoskeleton) is composed of (a) chitin (b) collagen (c) calcium…

A: The phylum mollusca (invertebrates) shows the presence of shell. The shell may be internal or…

Q: What material is found in the skeleton of all sponges?

A: Sponges are members of the phylum Porifera. Sponges are a multicellular organism that has bodies…

Q: Concerning tissue complexity how different are cnidarians from poriferans?

A: Poriferans and Cnidarians are organisms belonging to the Animal Kingdom. Phylum Porifera are also…

Q: List two or three features of an earthworm cross section that distinguish the dorsal and ventral…

A: The earthworm is an invertebrate that belongs to Phylum Annelida. It has a tubular body plan and…

Q: How does a molluscan coelom develop embryologically? Why was the evolutionary development of a…

A: Molluscs area unit found it nice ranges of habitats, from the tropics to the polar seas, at…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: What are the advantages of metamerism to annelids?

A: Annelida is a phylum of segmented or ringed worms that are adapted to live in variety of ecosystems.…

Q: Where do invertebrates fit into the evolutionary history ofeukaryotes? Of animals?

A: Phylogeny is the branch of biology that studies phylogenetic analysis. A phylogenetic analysis is…

Q: Do sponges appear to have any organs or organ systems?

A: Answer- Sponges are the most primitive type of animal in the whole kingdom.

Q: Most sponge species are of leuconoid construction, is this an advantage or disadvantage?

A: Canal system is the characteristic feature of sponges. It helps in respiration, circulation,…

Q: How sponges are different from other animals ?

A: Sponges are members of the phylum Porifera which are stationary, channel taking care of marine or…

Q: What morphological evidence suggests that nemerteans are typical coelomates?

A: Phylum Nemertea commonly called ribbon worms are bilaterally symmetrical, unsegmented organism that…

Q: Crustaceans, like annelids, are segmented animals. But crustaceans unlike annelids have tagmata.…

A: Advantage:  The segmentation of annelids is highly adaptive, it allows more efficient movement.…

Q: Echinodermata is the first phylum you have examined whose members possess true endoskeletons. What…

A: Echinodermata are called after their spiny skin, and so this phylum has over 7,000 recognized living…

Q: Discuss canal system in sponges?

A: Sponges are also called Porifera and are primitive multicellular organisms with a cellular grade of…

Q: hat features of molluscs appear in other invertebrate phyla? Explain

A: The most common properties of mollusks are covers with various vital openings used for breathing and…

Q: Tapeworms  ______                                                           Clams ______…

A: Metazoans are classified into protostomia and deuterostomia based on the embryonic development.…

Q: Explain the utility of radial symmetry for sessile and free-floating animals.

A: Answer: Introduction: Explain the utility of radial symmetry for sessile and free-floating animals…

Q: What advantages are associated with segmented bodies and appendages?

A: The term segmentation in biology means to duplicate the organs or body parts, like arms and legs.…

Q: Which phylum is characterized by a hard, flexible exoskeleton and multiple life cycles?

A: Ans. Animals from the biological Animalia kingdom, are multicellular eukaryotic organisms. Animals…

Q: How can the endoskeleton of echinoderms be characterized in comparison to analogous structures…

A:

Q: How useful is the study of the nature of body cavity and coelom in theclassification of animals?

A: Animal classification is a system of grouping animals by their similar characteristics. It is also…

Q: What is meant when it is said that beings of the phylum Annelida are vascular beings? From which…

A: Annelids are segmented worms. They live in a variety of habitat. They have a complete digestive…

Q: Most sponge species are of leuconoid construction, is this type of sponge construction an advantage…

A: Sponges are the members of phylum Porifera. The Latin name of this phylum is derived from the high…

Q: How are the dorsal and ventral surfaces differentiated in a preserved, adult earthworm? The dorsal…

A: The earthworm is the nocturnal crawling organism that belongs to phylum Annelida. The earthworm has…

Q: Cnidarians and ctenophores are considered diploblastic, but why might some biologists label them…

A: The process of embryonic development is characterized by the formation of the primary layers called…

Q: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: Are mollusc metameric beings? Exclusively analyzing this feature could it be said that molluscs are…

A: The mollusks are a diverse group containing 85,000 species. These are mostly marine species.

Q: What do fossil tetrapods tell us about the transition from water to land?

A: The animals that have 4 limbs are known as tetrapods and constitute the superclass Tetrapoda which…

Q: What is the notochord?How is this structure formed?

A: Embryology is about the study of zygote and embryonic and organ development in plants and animals.…

Q: Coelom formation in Deuterostomes is ____________ whereas in Protostomes is _____________.

A: Metazoans are classified into deuterostomes and protostomes due to their different embryonic…

Q: What makes sponges (poriferans) different from other animals?

A: SPONGES They are the member of phylum porifera. They are multicellular organisms having body full of…

Q: What are benthoic animals?

A: The animals are eukaryotic and multicellular organisms.

Q: Why are Cnidarians diploblast and other animals tripoblast based on evolution?

A: In the early developmental stages, the embryo of the vertebrates organizes itself into a…

Q: What was the evolutionary significance of segmentation and the coelom to its earliest…

A: The coelom is defined as the main body cavity present in animals and thus, it is positioned inside…

Q: Which other invertebrate groups are likely to be the closest relatives of molluscs? What evidence…

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

Q: Why do you think fishes radiated to many forms and became successful in life in water?

A: there are n number of Asian and African lakes and the number of fishes found there. Tanganyika is…

Q: What type of body symmetry does this creature have?

A: The correct Answer is Option D . Bilateral Symmetry .

Q: Considering the presence of segmentation (metameres) in their body to which other already studied…

A: Arthropod are the invertebrate organisms and have segmented body, exoskeleton, and jointed paired…

Q: What larval type do Anthozoans have and what phylum are they in?

A: Anthozoans are marine invertebrates which comprises of: Sea anemones Stony corals Soft corals

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.