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

Q: Define asexual reproduction, and describe four forms of asexual reproduction in invertebrates.

A: Reproduction is the biological process by which new offspring are produced from parents, which is…

Q: How is the mesoderm(third germ layer) oftriploblastic animals formed?

A: The germ layers develop early in embryonic life, through the process of gastrulation. Triploblastic…

Q: What are embryophtes?

A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…

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: Looking at a variety of animals,what are the advantages to restricting reproduction to a limited…

A: Animal species that successfully mate only during certain times of the year are known as seasonal…

Q: How are mammalian sperm cells produced and incubated at a lower temperature than body temperature?

A: Mammalian sperm is the male gamete that is produced by the process of spermatogenesis in males. Once…

Q: How does the animal regulate the temperature of its scrotum during hot and cold climatic conditions?

A: The Scrotum is a sac of skin that hangs from the body at the front of the pelvis , between the legs.

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: What is the only haploid stage in the life cycle of animals? O gametes O adults O spores O zygotes

A: Question asked: Which is the only haploid stage in the life cycle of animals ?  Answer: gametes

Q: Why are the offspring of a male and a hermaphrodite more variablethan the offspring of a…

A: Hermaphrodites in reproductive biology are organisms that have both male and female sex organs. For…

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: Cite three reasons as to why some animals use asexual reproduction.

A: The production of new individuals from a single parent is known as asexual reproduction.…

Q: Define the function of ova and avary in female reproductive system of frog?

A: The female reproductive system in frog has a pair of ovaries, a pair of oviducts that open into the…

Q: What benefit would being a hermaphrodite confer on a specific species?

A: Reproduction is a biological process through which an organism produces organisms (young ones) of…

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: 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: List the two major groups of animals in theDeuterostomia.

A: Deuterostomia are organism in which development of anus takes place first from the dorsal blastopore…

Q: How do the two kinds of mammalian reproductive cycles— estrous and menstrual differ?

A: Fertility is more tightly regulated in the female then males. Female placental mammals have one or…

Q: What is the difference between simultaneous and sequential hermaphrodites?

A: Hermaphrodites are organisms that possess both female and male genitalia. This condition is called…

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: Where are nematocysts located in the Anthozoans (subphylum Anthozoa)?

A: Anthozoa is a subphylum under phylum Cnidaria.It is a class of marine invertebrates which includes…

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: What is the evolutionary advantage of the occurrence of sperm cells and larval stage in the life…

A: All sponges belong to Porifera. They are the simplest animals with cellular level of organization.…

Q: How do the two kinds of mammalian reproductive cycles—estrous and menstrual—differ from each other?

A: The reproductive cycles refers to the change in the physiological changes in the reproductive organs…

Q: Recent fossil evidence shows a placoderm with a developing embryo inside its body. In the absence of…

A: The fossil, Materpiscis attenboroughi, which is related to placoderms in Devonian period, showed the…

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: 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: Generally how does a maleanimal realize that the femaleis receptive to copulation?

A: A social sign might be viewed as any standard of conduct that adequately passes on information…

Q: Which among these insects secrete seducin by the male which both attracts and pacifies the untamed…

A: All insects secrete pheromones to attract the opposite sex.  Bombus lapidaries, a bee, release…

Q: What is the importance of sensory cephalization in animal survival?

A: Cephalization is the process in animals by which nervous and sensory tissues become concentrated in…

Q: Which form of reproduction is useful to an animal with little mobility that reproduces sexually? a.…

A: Answer is d.)  hermaphroditism.

Q: Give a short note on the reproductive system of Rana?

A: Reproductive system or the genital system includes all organs and their related structures that…

Q: Is a zygote a fertilized egg?

A: Fertilization is the process whereby gametes from each parent fuse to produce a new cell.

Q: does the earthworm (Oligochaeta) contain any synapomorphies?

A: Oligochaeta: This is a subclass of animals in the phylum Annelida, which is made up of many types of…

Q: What is one challenge posed by copulation between separate sexes? What are some adaptations that…

A: Grasshoppers :  They belong to animalia kingdom,  the phylum: arthropoda , the class : insecta , the…

Q: What is mesoderm? Name an invertebrate with mesoderm.

A: Introduction During embryonic development the three germ layers, ectoderm, endoderm and mesoderm…

Q: What is the evolutionary significance of parthenogenesis in the Class Insecta?

A: The development of an egg without fertilization is known as parthenogenesis. It occurs in different…

Q: Most wrasses are sequential hermaphrodites. What do you think is an adaptive advantage of this…

A: Step 1 Sequential hermaphroditism or dichogamy is a type of hermaphroditism occurring in many fish,…

Q: Reproduction is usually secual with both male and female sexes, however asexual reproduction does…

A: Reproduction can be divided into two categories. One of the categories include asexual reproduction.…

Q: Discuss the different reproductive modes observed in class insecta.

A: Introduction Insecta is the largest class of the phylum arthropoda. The general character of…

Q: What is the examples of animals reproducing sexually and ansexually?

A: Reproduction is considered a major biological process, where a matured organism produces new…

Q: In animal phyla with radial cleavages, cell fate of the embryo is?

A: Radial cleavage is a developmental pattern of embryos where the cell division happens…

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.