Explain the advantages and disadvantages of self fertilization in these flatworms

Q: consider a pig that has only fully formed ovary. how would this affect the pig's future…

A: Anything the gilt encounters before its first mating has the potential to influence its reproductive…

Q: Explain one key process involved in the development of insects from one instar stage to another

A: Before the insect attains sexual maturity, the insect is referred to as a larva that undergoes…

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: Explain the difference between holometabolous and hemimetabolous metamorphosis in insects, including…

A: Metamorphosis is a biological process that involves a series of changes that occur in the body of an…

Q: Discuss the process and pathways of fertilzation in turtles. Also provide or show a diagram how does…

A: In Males there's have one or two penises that pass sperm from their cloaca to the cloaca of a female…

Q: Which of the following steps of sea urchin fertilization initiates the formation of the…

A: Fertilization is the union of male ( spermatozoa ) and female ( ovum ) gametes which results in the…

Q: Illustrate an egg in the morula stage. How does its size compare with that of the fertilizied egg?

A: MORULA STAGE OF EGG- It is an early stage of embryo consisting of 16 cells called blastomeres  which…

Q: Compare the process of gastrulation in amphioxus and birds

A: Gastrulation is a process early in most animals' embryonic development during which the blastula is…

Q: describe internal and external fertilization, and provide examples of animals that use each of these…

A: Reproduction is the biological process through which a new individual organism is produced. The…

Q: In terrestrial arthropods, fertilization is always internal (True/False)?

A: Arthropoda is the largest phylum in the animal kingdom, which includes such familiar forms as…

Q: Write a short note on fertilization in Riccia ?

A: These plants are small and thalloid, meaning they lack root, stem, and leaf differentiation. The…

Q: In flowchart form, trace the pathway of the frog’s eggs from the ovary to the anus.

A: Frogs belong to the class Amphibia of the phylum Chordata. They have smooth and slippery skin due to…

Q: Give the process of internal fertilization in turtle. Show illustration how the fertilization…

A: Turtles are a type of reptile known as Testudines. They are distinguished by a shell made primarily…

Q: Describe internal fertilization process in sea urchin.

A: The process of internal fertilization occurs when a male and female gamete fuse inside the female…

Q: Illustrate a model of female reproductive system of frog showing structures and pathways during…

A: Oviposition is a widespread process in vertebrates apart from eutherian mammals, and it refers to…

Q: Show a model of female reproductive system of turtle showing structures and pathways during…

A: An early scientist who made useful noteson the status of the sea turtle reproductivetract was J. R.…

Q: Male parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but…

A: Introduction  Reproduction is the characteristic of all biological species present on the Earth. All…

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: 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: In the sexual reproducing phyla Nematoda, are the animal’s hermaphrodites or separate  sexes?

A: Hermaphrodites are the animals which have both the sexes present in the same body i,.e they are able…

Q: reproductive

A: Turtle- It is an reptile belongs to order Testudines. these are mainly characterized by a shell…

Q: Explain gastrulation in fish

A: Gastrulation in Fish: - Gastrulation is defined as a process in which gastrula is formed from a…

Q: Cite two examples of hermaphrodites and their means of preventing self-fertilization.

A: It is critical to learn and know the anatomy and physiology of the body. Many changes in the animal…

Q: Describe external fertilization  process of sea urchin egg with diagram

A: Fertilization in sea urchin occurs solely through the external process in which egg and sperm fuse…

Q: Draw a labelled diagram of the reproductive organs of an earthworm.

A: Earthworm is a terrestrial invertebrate belonging to the order Oligochaeta of the Phylum Annelida.…

Q: In sea urchin, which step of egg and sperm recognition involves the formation of a fertilization…

A: The acrosome contains digestive enzymes. These enzymes break down the outer membrane of the ovum,…

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: what do you know about reproductive system of insects and its types? explain briefly

A: Insects belong to the group Arthropoda of the animal kingdom.

Q: Describe the acrosomal reaction in an echinoderm like the purple sea urchin, Strongylocentrotus…

A: Echinoderms are a group of marine invertebrates that belong to the phylum Echinodermata, and has a…

Q: IDENTIFY: A specialized receptive structure that guides the male gamete for fertilization in the…

A: Sexual reproduction in genus Polysiphonia takes place by fusion of non-motile male gamete with…

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.