What structures of chelicerates are analogous to the antennae of chilopods (centipedes) and other mandibulates?

Q: name and describe the craniates that are not vertebrates?

A: Vertebrates are known as craniates because of the presence of a skull or cranium. Craniata includes…

Q: Discuss the body plans exhibited by the crustaceans that are also shared by all other arthropods.…

A: The word arthropod is a combination of two Greek words - arthro meaning jointed and pod meaning…

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: Amphioxus does not possess a vertebral column? yes or no?

A: Amphioxus  They are also known as lanceolate and belonging to the group of invertebrate animals.

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 wings and exoskeletons adaptive advantages in terms of the body structure of insects?

A: In this question, we have to mention the adaptive advantage of wings and exoskeleton in the insects.

Q: What are the features of trabeculae?

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

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: Barnacles can move as adults. True or False?

A: Step 1 - False . Barnacles do not move as adults but remain attached to their substratum ( termed as…

Q: Which are the morphological features that differentiate the beings of the phylum Annelida from…

A: Animals are divided into main categories known as chordate and non-chordate. Non chordates do not…

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 are Arthropods ? Explain the characteristics of Arthropods ?

A: Arthropod are the largest phylum in animal kingdom.

Q: What activities and body functions of arthropods require the most specialized appendages?

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

Q: What is a key characteristic of all arthropods?a. Six legsb. Pseudocoelomc. Mandiblesd. Exoskeleton

A: Arthropods are the largest phylum among animal kingdom. They are non chordates and do not contain…

Q: Scales of modern teleosts differ from the ancestral state in that they _____.     are thicker and…

A: They are the members of actinopterygians.  They are marked by the body rays on their fins.…

Q: How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need…

A: The Chondrichthyes include rays, sharks, and skates that have a cartilaginous skeleton with calcium…

Q: What structures did amphibians develop to support the weight of the body against the force of…

A: Amphibians, as their name indicates, are class of organisms that  have adaptations suited for both…

Q: Some evidence suggests that members of Acoelomorpha constitute the sister group for all other…

A: Acoelomorphs are small, flatworms whose length is less than 5 mm. This group comprises around 350…

Q: Discuss in detail the external characters of Hemidactylus?

A: Hemidactylus belongs to the kingdom and phylum Animalia and Chordata respectively. They reside in…

Q: Give a broad Conclusion about the Anatomy of Amphioxus and its importance.

A: Branchiostoma or Amphioxus lives both in marine and estuarine habitats. It is commonly found in the…

Q: Describe the advantages and disadvantages of thearthropod exoskeleton.

A: The largest phylum of the animal kingdom is Arthropoda that possesses a hard, tough external shell…

Q: What are some adaptive advantages of a pseudocoel compared to the acoelomate condition?

A: In animals the body cavity (coelom) is the area or free space that contains all the organs suspended…

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: What phylum is considered to be the arthropod's closest relative? What major characteristics do…

A: Arthropods are invertebrates that have legs with joints. They account for around 75% of all animal…

Q: What are the characterstics of chordata?

A: A chordate is a phylum which contains vertebrates like mammals, birds and some fishes and also…

Q: What sarcoptergians or lungfish (if any) are related to amphibians?

A: Ans. In the superclass Tetrapoda ("four limbs"), the vertebrate community that has left the Sea for…

Q: What differences in morphology among Osteolepiformes (Eusthenopteron), Tiktaalik, and Ichthyostega.…

A: Osteolepiforme- Long and slender, with posterior fins set far back and a long mouth lined with…

Q: Members of Chondrichthyes differ from members of Osteichthyes by having (a) ________. a. jaw b. bony…

A: Fishes are divided into three classes:- 1) CRANIATES that are jawless fishes. 2) GNATHOSTOMES that…

Q: Why are external skeletons important for soft-bodied invertebrates?

A: Skeleton is the robust structure exhibited in the organism which act as scaffold for the body.…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

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: Differentiate the following according to their anatomical characteristics. Give at least five…

A: INTRODUCTION  The Chondrichthyes is the category of bony fish and mainly their exoskeleton  is…

Q: Compare the body plan of Dugesia and cnidarians. Aside from differences in symmetry, what other…

A: Thank you for the question  Answer :Dugesia belong to phylum Platyhelminths.  The features seen in…

Q: Question: All members of Chordata have true vertebrae.   True or False?

A: Animalia is the most advanced and complex kingdom among all the other kingdoms. The body has tissue…

Q: What is the type of digestive system present in beings of the phylum Arthropoda? Are these animals…

A: The phylum Arthropoda is composed of animals with jointed appendages or legs. It is a phylum of…

Q: What are various podomeres that make walking legs of the insects? Explain briefly

A: All the insects have their body segmented into the head, thorax and abdomen. The abdomen region…

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: How are the main classes of arthropods classified according to the presence of larval stage in their…

A: The members of phylum Arthropoda are collectively referred to as arthropods. Segmented body, the…

Q: What functional problem results from torsion? How have gastropods evolved to avoid this problem?

A: The shell is first formed in the veliger larval stages of gastropods. This larval stage has two…

Q: How many pairs of legs does each body segment of a centipede have?

A: The phylum of the centipede is Arthropoda. The subphylum is Myriapoda. This venomous organism has an…

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 type of skeletal system do echinoderms have?

A: Echinoderms have the following characteristics- 1. They are radially symmetrical. 2. They are…

Q: List the appendages on the head of a crustacean. What other important characteristics of Crustacea…

A: Introduction  Crustaceans are the aquatic invertebrates that belongs to the phylum Arthropoda. The…

Q: What are the morphological similarities and differences between nematodes and annelids?

A: Nematodes are referred as roundworms and constitute phylum Nematoda. They are multicellular…

Q: Apart from structural support, what are other functions of exoskeleton in arthropods?

A: Answers -  Other functions of exoskeleton -  1. Exoskeleton provides a large surface area for the…

Q: Differentiate between Agnatha and Gnathostomata

A: Step 1 Vertebrate is the largest subphylum of Chordata in which the notochord in the embryo is…

Q: How are the three main arthropod classes characterized according to the number of limbs?

A: Arthropoda:   They are the largest phylum. They have a chitinous exoskeleton and jointed appendages.…

Q: What is the relevance of amphioxus in studying anatomy of vertebrates?

A: The closest living invertebrate relative of vertebrates is the cephalochordate amphioxus…

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.