How is the large size of some cephalopods related to the type of circulatory system they present?

Q: What class of Chordates is considered as the most advanced and highly specialized?

A: Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with…

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: Bring out the differences between a cephalochordate and an agnathan regarding circulatory system?

A: The cephalochordate is an animal in Cephalochordata subphylum. These are segmented marine organisms…

Q: which other invertebrate groups are likely to be the closest relatives of mollusks? provide…

A: INTRODUCTION Mollusca Second largest phylum of invertribrates after arthropodes.

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: How are insects distinguished from other hexapods?

A: Arthropods are the invertebrates that form one of the largest groups of phylum in the animal…

Q: How are the valves of a brachiopod oriented in terms of the dorsalventral axis?

A: Brachiopods belong to the Phylum Brachiopoda, which is a monophyletic group. These organisms are…

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: What is the type of circulatory system present in annelids?

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

Q: How can brachiopods be distinguished from bivalves?

A: Invertebrates are organisms in which backbone is absent . It includes :-  A ) Arthropods  B )…

Q: How are the three main arthropod classes characterized according to the presence of wings?

A: Arthropods are the largest phylum in the animal kingdom and is an invertebrate animal characterized…

Q: If snakes are limbless, how can they be consideredtetrapods?

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: How do nematode and annelid body plans differ?

A: Animal phylogeny is a rapidly changing field for the biologists. Even if the members of animal…

Q: how does nematodes found in the lungs of a toad impacts the toad's life?

A: Nematode, also called roundworm, any worm of the phylum nematoda. Nematodes are among the most…

Q: What features are common to animals specifically invertebrates without well-developed circulatory…

A: Circulatory system can be described as the system which helps in circulating the blood and lymph…

Q: Use examples to explain how the external morphology of cephalopods has changed over evolutionary…

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

Q: Which myriapods occur in moist soil or leaf litter?

A: Myriapoda belongs to the subphylum of the arthropod. The myriapod is terrestrial primarily and…

Q: Explain the features that account for the great success ofarthropods.

A: Arthropods are invertebrate animals with jointed leg. They are one of the largest species of animals…

Q: How does the number of body cavities of nematodes compare with that of flatworms?

A: Flatworms, also known as  platyhelminths, are a phylum of bilaterian, unsegmented, soft-bodied…

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: How does the presence of exoskeleton explain the general small size of arthropods?

A: Arthropods are the invertebrates with characterized by the presence of jointed appendages and a hard…

Q: How does the lifestyle of a gastropod differ from that of a cephalopod?Identify adaptations that…

A: To describe: The way in which the lifestyle of a gastropod differs from that of a cephalopod.…

Q: List the traits found in the coelomate mollusks.

A: Mollusks are bilaterally symmetrical, segmented, soft-bodied, coelomate animals. The mollusks have a…

Q: Do echinoderms present with cephalization?

A: Cephalization is the formation of a central nervous system in organisms. Cephalization is important…

Q: Do sponges have nervous, circulatory and excretory systems?

A: Though all members of Kingdom Animalia are multicellular, all of them do not exhibit the same…

Q: does earthworms have a closed or open circulatory system?

A: The earthworm has a closed circulatory system. An earthworm circulates blood exclusively through…

Q: How does the body plan of mesozoans relate to their parasitic behavior?

A: Phylum mesozoans include small worm like organisms which are parasite on marine inverteberates…

Q: Cnidarians are...

A: Ans. Cnidarians are diploblastic.  Option 2nd diploblastic is correct

Q: AN adaptive scenario for how lungs evolved in the tetrapod ancestor?? use the swim bladder to help…

A: Lungs are the central respiratory organ in the body. Oxygen is required for regular energy…

Q: does the earthworm have a close or open circulatory system?

A: There are two types of circulatory patterns known: one is an open circulatory system and another is…

Q: The phylum Nematoda is protostome or Deuterostome ?

A: Phylum Nematode commonly referred to as roundworms or thread worms are aquatic or terrestrial,…

Q: How do the skin and respiratory systems of amniotes differ from those of their early tetrapod…

A: Amniotes belongs to the kingdom Animalia and phylum Chordata. They belong to the clade of tetrapod…

Q: The phylum Nematoda has which type of body cavity?

A: Nematodes are one of the defined phyla of the kingdom Animalia. It is otherwise known as roundworms.…

Q: Which type of circulatory system do molluscs have? How can it be compared to the respiratory system…

A: Mollusks belong to the Phylum Mollusca. Mollusks include many familiar animals on land, in…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

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: Name a chordate having colourless blood without corpuscles?

A: The chordates are the vertebrates that belong to the kingdom Animalia and phylum Chordata. The…

Q: How are the three main arthropod classes characterized according to the presence of antennae?

A: Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as…

Q: What characteristic defines a chordate who is also a vertebrate?

A: The animal kingdom is divided into two phyla- Chordata and non-chordata. The phylum Chordata…

Q: Which features of amphibians restrict mostspecies to living in aquatic or moist terrestrialhabitats?

A: Amphibians are vertebrate tetrapods undergo mixing of aquatic and terrestrial phases that are…

Q: What are benthoic animals?

A: The animals are eukaryotic and multicellular organisms.

Q: How are the excretory systems of the three main arthropod classes constituted?

A: Arthropoda- These are invertebrate animals equipped with jointed appendages. It is the largest…

Q: Why is the internal shell of Cephalopods significant to their adaptation?

A: Cephalopods have huge, advanced brains, and their brain-to-weight proportion is the biggest among…

Q: What is the role of elaborated cloaca in reptiles?

A: Reptiles are characterized by the presence of four limbs and uric acid as the nitrogenous waste…

Q: What is Chordate body plan?

A: The vertebrates are the largest group of chordates, with over 62,000 species living. The vertebrates…

Q: In what ways were therapsids adaptively superior to the amphibians and reptiles that preceded them?

A: Therapsids are the ancestors of present-day mammals and their related ancestors. They represent an…

Q: What is the number of shells each organism has (Cephalopoda Scaphopoda)?

A: Shell or seashell is a hard protective layer formed by an animal that lives in the sea. Shell is…

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.