The arthropod exoskeleton is the most complex of invertebrate in-teguments. Describe its structure, and explain the difference in the way cuticle is hardened in crustaceans and in insects

Q: Compare and contrast the external anatomy of the branched and unbranched forms of Equisetum.

A: Equisetum, often known as the 'horsetail' or'scouring rush,' is now made up of approximately 30…

Q: Briefly discuss the components that make up the exoskeleton. List the hormones responsible for this…

A: The external skeleton that provides support and protection to the animal’s body is known as the…

Q: ard calcium carbonate structures are sed as skeleton by: Echinodermata Arthropoda

A: skeleton is a structural frame that supports an animal body. It is of two types endoskeleton and…

Q: If a snail had a damaged radula, then that snail; would have no shell Not be able to undergo torsion…

A: Snails are one of the earliest known types of animals in the world. There is evidence that they…

Q: Name one invertebrate animal with both exo and endo,-skeleton

A:

Q: The anteriormost nonsegmental body region of an annelid is the prostomium acron O pygidium O…

A: Phylum annelida exhibits great diversity of body form, body is elongated bilateral symmetrical and…

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: Explain the advantages and disadvantages of the arthropod exoskeleton.

A:

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: 40. A marine biologist asked you to look out for Echinodermata in an expedition. Which of these…

A: The first organism that is listed is a crab. It shows presence of jointed appendages and shows an…

Q: Difference between hexapod and chelicerae in structure and function

A: Hexapoda is a subphylum consisting most species of arthropods and includes the insects. Hexapods…

Q: Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c.…

A: Answer is d.) Chelicerata.

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: Which of the following classes has/have spicules that lack an axial filament? a. Demospongiae and…

A: Classes in phylum porifera -  Calcispongiae Hyalospongiae Demospongiae These are classified on the…

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: Question about Spongebob as a member of Porifera If the numerous smaller pores in Spongebob's body…

A: Spongebob is a member of phylum Porifera. Osculum is a characteristic  feature of porifera.…

Q: Which statement about the endoskeletons of vertebrates is true? Only one bone is required to form a…

A: Endoskeleton is a skeleton that is found inside the body.

Q: Explain the major advantages and disadvantages of mollusk exoskeletons in comparison to worm…

A: Hi dear, here's your answer. The three skeleton types incorporate the hydrostatic skeleton, mollusk…

Q: 1. Define the following                a. Operculum                b. Spine                c.…

A: Trematodes are parasitic flatworms that reproduce through sexual or asexual mode but both take place…

Q: similarities and differences of Hemichordata    and    Chordata

A: The hemichordates are very primitive, while chordata are more advanced group of animals. The very…

Q: #18: This is Ulva; which of the following terms describes its morphology: unicellular, colonial,…

A: Seaweeds are multicellular, small, marine algae that grow along seashores. They form the food source…

Q: The large central opening in the poriferan body is called the _____. a. emmule b. picule c. stia d.…

A: The term biodiversity refers to the diverse variety of life present on the earth. As biodiversity…

Q: Are humans plantigrade or digitigrade?

A: Human evolution explain the many mysterious fact about evolving humans from their ancestors apes

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: Bilaterally symmetrical animals have________embryonic tissue layers, known as________ ,___________,…

A: The embryo undergoes various types of changes in order to form a developing fetus. During the…

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: 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: Insect cuticle is the characteristic feature of class insecta and is to a large extent responsible…

A: Insect body wall ( also called as Integument and exoskeleton) provides the external covering of the…

Q: The subunits of the sea star endoskeleton are known as ______________.

A: Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage…

Q: Which of the following is NOT a characteristic of the exoskeleton of an arthropod? A. Always laden…

A: Arthropoda is the largest phylum in the animal kingdom and contains insects. Their bodies are…

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: Explain the differences in vertebrate appendicular musculature between fishes and tetrapods. How…

A: The evolution of appendicular musculature morphology has been studied, changes in muscular…

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: Observe the exoskeleton of the wolf house spider. Have you seen an exuviae (the remains of the…

A: Wolf spiders are one of the most well-known spiders that is mostly seen indoor.Like all other…

Q: Animals that are consired to be stocky or muscular what will they be described to show that? Like…

A: Muscle tissue is a soft tissue that composes muscles in animal bodies and gives rise to muscles'…

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: sea star Tube feet are extended when the ____________________________ contracts.

A: Echinoderms are a phylum of marine invertebrates that include starfish, brittle stars, sea…

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: Briefly explain the genetic determination of biramous and uniramous appendages.

A: Arthropoda phylum is more often known for the appendages found in the species of these groups. The…

Q: developmental stage of human head louse (Pellucida)

A: Development stage of human head louse or lice consists of three stages. They are as follows ;  1)…

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: 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: Differentiate between Agnatha and Gnathostomata

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

Q: Bristle-like structures that provide traction for annelids are called chaetae cilia hair cells

A: Annelids are large phylum; it contains more than 22000 species, such as earthworms, ragworms, and…

Q: Based on your observations of representative invertebrates (earthworms - hydrostatic skeleton and…

A: The earthworm's soft, flexible body is separated into segments, allowing it to effortlessly move…

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.