1. What are the functions of the tube feet, madreporite, and ambulacral groove?  2. What is regeneration?

Q: The rhynchocoel is a ________. a. circulatory system b. fluid-filled cavity c. primitive excretory…

A: Step 1 The phylum Nemertea, also termed as ribbon worms are unique due to the presence of a…

Q: What is the shape of a spider’s chelicerae?

A: Chelicerata, an arthropod group that includes, horseshoe crabs, arachnids, and sea spiders.…

Q: 1. Differentiate between Dimorphism and Polymorphism. 2. Briefly discuss the four types of polyps…

A: difference between dimorphism and polymorphism Dimorphism: The presence of two distinct forms of…

Q: The spiracles can be opened or closed. Why might this be adaptive?

A: The respiratory system of an insect is the biological system through which it introduces respiratory…

Q: Describe the functions of: pedicellariae, madreporite, dermal gills, Aristotle’s lantern, tube feet,…

A: Echinoderms are marine invertebrates. Their skin is hard or spiny. They have a mesodermal…

Q: Describe the location and function of skin gills, tube feet,and the stomach.

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: sea star How does a sea star protect its tube feet?

A: Seastar:   Seastar is also known as starfish. It belongs to class Asteroidean and it is star shape…

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: The

A: Introduction :- Brachiopods also called as lampshell which belongs to the phylum Brachiopods.…

Q: 3. How does metamorphosis reduce competition between adults and immature forms? 4. How are the…

A: The phylum Arthropoda contains the biggest group of invertebrates (creatures lacking a spinal…

Q: How many tube feet would you estimate are on the oral surface of a sea star?

A: Starfish are star-shaped echinoderms which belongs to the class Asteroidea. They are found in marine…

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: What is filiform antennae?

A: The adult insect possesses a pair of antennae.  They originated exclusively from the second segment…

Q: How does the amoeboid movement occur? What are examples of beings and cells that use such movements…

A: Amoeboid movement is the movement exhibited by amoeba.

Q: View a dissected clam on the website. Make sure you can identify the mantle, the foot, the gills,…

A: 1.) Function of foot in clam is foot enables the clamp to borrow itself in mud or sand. 2.) Function…

Q: What is the external rigid carapace of arthropods called? Of which substance is it made? Which type…

A: The Arthropoda is the largest phylum in the Kingdom Animalia in terms of the number of species. It…

Q: How do the gills of Labea and Scoliodon differ?

A: The genus Labeo includes oily fishes that inhabit the freshwaters. They are classified under the…

Q: why is the neodermis a benefical adaptation for an endoparasite that resides in the digestive tracts…

A: The syncytium is a single cell or cytoplasmic mass containing several nuclei, formed by the fusion…

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: Write a comprehensive and coherent well referenced notes on Scleroderma and Pigmentarydisorders.?

A: SCLERODERMA Scleroderma is a rare disorder. It is a disorder in which normal tissue is replaced by…

Q: What are the segmentsthat form the body of thetapeworm called? What istheir function?

A: Tapeworms are parasites that survive within another organism, known as the host. Drinking…

Q: What structures determine whether a polyp of Obelia is a Hydranth (feeding polyp) or a gonangium…

A: There are 2 forms in the phylum coelentrata which are Polyp and medusa polyp form is less advance…

Q: 1. What is the major unifying aschelminth features? 2. Most ascheminths lack mesenteries. Where do…

A: Aschelminthes are pseudocoelomate, triploblastic, vermiform, unsegmented, bilaterally symmetrical,…

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: Write down the division between agnatha and gnathostomata?

A: Phylum Chordata is characterized by its five anatomical features including a notochord, pharyngeal…

Q: What do you mean by filopodia?

A: Filopodia are soft cytoplasmic projections that are present in migrating cells. They form focal…

Q: Which of the following is formed by a contribution of the pharyngeal endoderm? A. tracheal tube B.…

A: Internally, the endoderm forms the lining of the pharynx and it also form, a number of specialized…

Q: What do you mean by spiracles in the cockroaches?

A: Respiration is a metabolic process in which the organisms exchange the gas. In animals, they are…

Q: Which structure stops large particles from going into the cephalochordates pharynx? A. mucous net…

A: Answer :- Correct Answer is option B

Q: Tabulate the distinguishing characteristics of the horseshoe worms, the lamp shells, and the moss…

A: Horseshoe worms, lamp shells, and the moss animals all belong to clade lopophorata.

Q: Draw the structure neophron,struthio,psittacula,pavo?

A: The animal kingdom has a wide variety of organisms under its umbrella. Each organism is distinct…

Q: What is the purpose of gill slits?

A: Gill slits are defined as the individual openings to  the gills which lack a single outer cover.…

Q: What is the function of the arachegonium? O a. To carry out a sexual reproductive O b. To produce…

A: An archegonium is a multicellular construction or organ of the gametophyte period of specific…

Q: Briefly explain the mechanism of action of a sea star’s tube foot.

A: Tube feet, also called podia are the small tubular projections on the oral surface of an echinoderm,…

Q: Briefly describe the process of respiration among amoebas

A: Answer: Respiration in plants is the metabolic process of conversion of sugars and oxygen produced…

Q: What do you mean by trabeculae?

A: INTRODUCTION:- Trabecula  provides support  in various organs such as heart,penis,and spleen.

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: II. Give the function of the following structures 1. oral hood 2. vestibule 3. buccal cirri 4.…

A: Amphioxus belongs to  Phylum Cephalochordata which are small, marine fish like animals showing the…

Q: [ZOOLOGY] 1. a. What is the support structure of millipedes? b. How many trunks do millipedes…

A: Millipedes resemble like insects and they are grouped under arthropods. They are well know for their…

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: 1. Define coelom. How is the coelom related to the hydrostatic skeleton?

A: Skeleton is the framework of bones. All animals possess skeletons, even invertebrates have hard…

Q: How many chambers does a scoliodon have?

A: The class Elasmobranchii consists of a large variety of cartilaginous fishes. Scoliodon is known as…

Q: 19. Demospongiae have Triaxon spicules Tetraxon spicules and spongin fibres Monoaxon spicules All…

A: Demospongiae are a group of living sponges.

Q: What is a radula and what is its function?  What is a mantle and what is its function

A: Given: Need to define radula and it's function Need to define mantle with it's function.

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: What is zygotes ?

A: Fertilization is the process of combining gametes to create a new individual organism or offspring…

Q: What are the stages in Schistosoma development? Where doeseach stage occur?

A: Schistosoma is a genus which is having many species of blood trematodes that causes schistosomiasis.…

Q: 1. What are the structural modifications of the pharynx in the classes of phylum aschelminthes?

A: Aschelminthes(Nematodes) are cylindrical and bilaterally symmetrical, triphoblastic in structure.…

Tissue renewal

In multicellular organisms, tissue is a level of structure that consists of a group of physically and functionally identical cells and their intercellular substances. Unicellular organisms do not have tissues. Tissues are absent or poorly differentiated even in the simplest multicellular animals, such as sponges. However, more evolved multicellular animals and plants have specialized tissues that may organize and govern an organism's reaction to its surroundings. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.