Q: Which are the germ layers present in cnidarians? Which tissues of the animal do they originate?
A: Cnidarians, also known as coelenterates are mostly marine organisms and includes corals, hydras, and…
Q: Compare and contrast the embryonic development of protostomes and deuterostomes
A: Metazoans are divided into protostomia and deuterostomia based on the development of the embryo.…
Q: How is the development of a hookworm larva different from the development of a pinworm larva
A: Larva is a stage during the development of animals. It occurs after the birth and before the reach…
Q: What molluscan features can be seen in other invertebrate phyla? Explain.
A: Animals are classified on the basis of presence of spinal cord and backbone into vertebrates (…
Q: a) Describe how coelom-status impacts the process of organogenesis. b) How do organs develop and…
A: During gastrulation, three germ layers develop, namely. ectoderm, endoderm, and mesoderm.…
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: Identify the characteristics of protostome development: Select one or more: O spiral cleavage…
A: Protostomes are organisms which shows formation of mouth before formation of anus during embryonic…
Q: Describe the process involved in hermaphrodite reproductive strategy in chaetognatha.
A: Chaetognaths also called as arrow worm because of its shape as torpedo or arrow. These are dominant…
Q: Are all of the organ systems fully developed in a free- swimming larva? Which organ systems are…
A: There are some major organ systems in the body of the animals. These organ systems have a specific…
Q: What is a nauplius? What is the difference between direct and indirect development in Crustacea?
A: The ear is divided into the inner ear, middle ear or ear canal and the inner ear. The outer ear…
Q: Define acoelomate
A: Acoelomate are invertebrates that do not contain a coelom or a body cavity. The organisms belonging…
Q: In whose phylum veliger larva occurs?
A: A larva is a juvenile form of animal with indirect development that looks completely different from…
Q: Describe the various methods of asexual reproduction in Ulothrix.
A: Ulothrix genus is a fresh water green algae found in ponds and lakes. The cells contain a distinct…
Q: How do the positions of the archegonium and antheridium relate to their reproductive function?
A: In the plant, anatomy archegonium can be described as a flask-shaped multicellular female structure…
Q: Define common prostatic and spermatic duct on earthworm?
A: Earthworms are hermaphrodites but they cannot fertilize their own eggs because of the relative…
Q: What is ovarian funnels in earthworm?
A: Earthworms are the members of the phylum Annelida of the kingdom Animalia. The body of the…
Q: What is the male reproductive system of frog?
A: Sexual dimorphism is present in frog. During the breeding system, both the male and female frogs…
Q: What kind of cleavage pattern characterizes snail development? Describe its orientation.
A: Snails, earthworms and flatworms are remarkably different animals, but they all exhibit a very…
Q: How is the process of gastrulation accomplished in mammalian embryos?
A: In developmental biology Gastrulation is the process that take place in the early embryonic…
Q: Giving details diagram the process of tetrasporic megagametogenesis. Give full details
A: INTRODUCTION It is a process of maturing female gametophyte in plant production. In the female…
Q: . How does the fertilization envelope form in sea urchins?What is its function?
A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…
Q: What is the type of reproduction that occurs in roundworms? What typical feature do nematode sperm…
A: Nematodes are the members of group eumetazoans characterized by bilateral symmetry and three germ…
Q: What are coelomocyte, identify their location and enumerate their functions?
A: Coelomocytes as the name suggests are the phagocytic leukocyte cells that are present in the coelom…
Q: Differentiate Protostomes from Deuterostomes in terms of the formation of germ layers
A: Developmental biology describes how interacting mechanisms generate an organism's various size,…
Q: Explain how an earthworm demonstrates cephalization
A: CEPHALIZATION It is an evolutionary trend in which the mouth, sense organs, and nerve ganglia become…
Q: Differentiate Protostomes from Deuterostomes in terms of germ layer formation
A: The most significant difference between protostomes and deuterostomes arises due to the…
Q: Differentiate Protostomes from Deuterostomes in terms of the formation of cleavage
A:
Q: Identify the phylum in which adults exhibit radial symmetry and larvaexhibit bilateral symmetry.
A: Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. Kingdom…
Q: Is a zygote a fertilized egg?
A: Fertilization is the process whereby gametes from each parent fuse to produce a new cell.
Q: Distinguish between: telolecithal and homolecithal eggs. Explain with examples of each
A: Eggs can be classified based on the amount and the distribution of the yolk present in them. On the…
Q: Define oviporous in animal kingdom with examples?
A: Organisms that are multicellular, eukaryotic and have heterotrophic mode of nutrition are…
Q: What is the clitellum of earthtworms and where it is located?
A: An earthworm is a terrestrial invertebrate found in the upper layers of the moist soil that is rich…
Q: Explain the function of nematocysts in cnidarians.
A: BASIC INFORMATION CNIDARIA It is one of the phylum of the animal kingdom in which the organisms…
Q: Distinguish two mechanisms by which flatworms supply yolk for their embryos. Which system is…
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: Distinguish between holometabolous development and hemimetabolous development and give 2 insect…
A: The development of insects passes through various stages. Various changes in the morphology and…
Q: Which earthworms have a clitellum?a). adultsb). juvenilesc). juvenile femalesd). malese). adult…
A: Annelids are included under the sub kingdom eumetazoa and is characterized by bilateral symmetry and…
Q: in eathworms, Is the clitellum located near the anterior or posterior end? What does the clitellum…
A: Annelida are segmented worms that live in saltwater, freshwater, and wet terrestrial environments.…
Q: Concerning germ layers and the presence of coelom how are arthropods characterized?
A: Arthropods belong to kingdom Animalia and phylum Euarthropoda. Artho means joint and pous mean…
Q: What is the adult fate of notochord? Discuss.
A: The notochord is a elastic bar which reaches out through Chordate organisms, offering unbending…
Q: What is the destination of the notochord in vertebrates and in protochordates?
A: A notochord appears in embryos as a small flexible rod made from cells from the mesoderm. It is only…
Q: Is the embryonic development in earthworms direct or indirect?
A: The earthworm is a hermaphrodite organism in which both male and female reproductive organs are…
Q: What is the distinguishing characteristic of each stage in the embryonic development of the sea…
A: Sea urchins are the organisms that constitutes the external fertilization events in which they send…
Explain the Type of protostome that produces a
trochophore larva ?
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