Why does the larval stages of insects exhibit a softer and thinner exoskeleton than their adult forms?

Q: Most insects have wings. Which is the other animal phylum that contains creatures with analogous…

A: Insects is a class of Arthropods. Organisms of this class belongs to the subphylum Hexapoda and…

Q: Observe the exoskeleton of the marine blue crab. What do you think they are made of?

A: Taxonomy is the study of organism categorization, it is the grouping (division) of all known species…

Q: Identify and explain what insects are expected to have the most sclerotized heads? Does an…

A: Scelerotin is typically a brown coloured substance found in cuticles of insects. Scelerotin is…

Q: cartilaginous endoskeleton while others possess bony endoskeleton?

A: Endoskeletons have evolved to suit their owner’s lifestyle. Bird bones, for instance, are full of…

Q: Which other phylum of the animal kingdom present species with exoskeleton?

A: Exoskeleton is present on the outer surface of the body as a covering which provides the protection…

Q: Nematodes and nematomorphs have which type(s) of skeletal system?    a.) Endoskeleton b.)…

A: Nematodes  Nematodes are pseudocoelomate and have complete digestive system with distinct mouth and…

Q: Earthworms have a(n) ____. Choose one: A.segmental skeleton B.endoskeleton C.exoskeleton…

A: Earthworm belongs to phylum Annelida of kingdom Animalia.They are triploblastic(have three germ…

Q: Exoskeletonsa. are typical of vertebrates.b. are hydrostatic.c. must be shed periodically.d. are…

A: Answer is a.) are typical to vertebrates.

Q: What features of a hydrostatic skeleton do Sponges, Cnidarians, Nematodes, Annelids, and Arthropods…

A: The most frequent skeletal system for movement and support in animals is the hydrostatic skeleton.…

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: The coelom of an earthworm, the muscular foot of a clam, andthe trunk of an elephant can all be…

A: There are three types of skeletons present in animal kingdom. These include; Endoskeleton which is…

Q: Do octopus and squids have exoskeleton?

A: An exoskeleton is an outer cover present on the body of an animal. In most of the animals it is made…

Q: Urchins and sand dollars lack arms. How do they move?

A: Sea urchins and sand dollars are both belong to the phylum Cnidaria and they are fully marine.  Sand…

Q: How do insects walk?

A: The legs of insects are jointed and consist of five parts that are femur, tarsus, tibia, trochanter,…

Q: The “heart” of arthropods is located (ventrally/centrally/dorsally/sagitally)?

A: The “heart” of arthropods is located dorsally.The arthropods are known to possess an open…

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: Worms use a hydrostatic skeleton to generate movement. How do they do this? a. Their bones are…

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

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: How is it that the insects form legs only in their three thoracic segments and have no legs on their…

A: Arthropods are animals with jointed appendages that account for more than 90% of all animals in the…

Q: Given what you already know about tardigrades, would you agree that they are the toughest animals?…

A: Tardigrades , often called water bears or moss piglets, are near-microscopic aquatic animals with…

Q: If you were Lamarck, how would you explain the long legs of this heron?

A: Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck, often known simply as Lamarck, was a…

Q: give 2 examples of animals with exoskeleton and endoskeleton  where the hydrostatic skeleton is lost

A: A skeleton is the structural framework that holds an animal's body together. There are three sorts…

Q: Arthropods are distinguished by having an exoskeleton andlacking external cilia. How do these traits…

A: The exoskeleton is the hard chitinous covering that covers the body of insects and prevents it from…

Q: Name one unique feature of the Arthropoda that is visible on honey bees. Also, can you guess what…

A: Introduction :- Arthropoda are an invertebrate phylum under the kingdom Animalia and it is the…

Q: How do muscle cells enable cnidarians to function in ways that sponges cannot?

A: Introduction :- Invertebrates such as jellyfish and corals are cnidarians. They are members of the…

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 type of exoskeleton do some molluscs present?

A: The mollusks are soft-bodied, marine invertebrate animals. These can be present on land or…

Q: Many Annelids have complex movement patterns using circular and longitudinal muscles. How is it that…

A: Since the earthworm lacks appendages and parapodia, the essential features of locomotion in annelids…

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: The arthropod exoskeleton is the most complex of invertebrate in-teguments. Describe its structure,…

A:

Q: What is the function of the pharyngeal bars in animal?

A: The evolutionary process by which the living organisms develop certain characteristics that allow…

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

A:

Q: Describe the exoskeleton and examples of organisms with this type of skeleton Which is the main…

A: 1.Exoskeleton is external skeleton which protects and supports the body of the organism.It is used…

Q: Against which hard structure do the circular and longitudinal muscles of an annelids work (Cuticle/…

A: Annelids are characterized by metameric segmentation. They include organisms like earthworms.

Q: give examples of animals with hydrostatic skeleton that are soon changed to exoskeleton or…

A: The skeleton formed by the coelom in the organism's body filled with fluid is called the hydrostatic…

Q: Crayfish, unlike earthworms, do not have a hydrostatic skeleton. Instead, crayfish have a rigid…

A: An exoskeleton is the outer covering of the body of an organism.

Q: What insects are expected to have the most sclerotized heads? Explain. Does an exoskeleton have an…

A: The epicuticle, a thin protein coating on the outside, and the procuticle, a thick chitin–protein…

Q: What disadvantages associated with having exoskeletons did arthropods have to overcome to allow…

A: Hi, Thanks For Your Question.  Answer : It Required Special Modification For Gaseous Exchange And…

Q: Using forceps or tweezers, gently pull the 4th or 5th pereiopod to examine its motion. Do so without…

A: As per the guidelines, we are entitled to do one question at a time. Kindly submit the question and…

Q: In a typical insect leg, what part may be composed of 2 to 5 segments? a. Femur b. Trochanter c.…

A: Insects have panned crustacean hexapod spineless or invertebrates creatures of the class Insect.…

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

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

Q: How does the arrangement of skeletal structures differ in sea urchins, sea stars, and brittle stars?…

A: Sea urchins have five-fold symmetry,

Q: Describe four advantages of arthropod exoskeleton.

A: Introduction: Arthropoda is a phylum in the animal kingdom. The species in this phylum are…

Q: why do you think hydrostatic skeleton is eventually lost in animals with exoskeleton and…

A: The skeleton organization in animals are found as three types - hydrostatic skeleton, exoskeleton…

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.