Q: How are mammalian extraembryonic membranes formed?
A: The layers encircling the embryo inside the uterus are known as extraembryonic membranes. The…
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: Define about Spermatogenesis and oogenesis in mammals. ?
A: As we know all living organisms are made of basic unit of structure and function called as cell.…
Q: Define the development & reproduction of Vertebrates: Fish and Amphibians ?
A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…
Q: what are three difference between mammals and frog testis?
A: The architecture of human urogenital tracts differs dramatically from that of all other animals. The…
Q: What are the three typesof germ layers that formtissues and organs in animals?
A: The tissue is a group of cells that perform a specific function. Basically a group of cells who…
Q: What are some advantages of the pronounced cephalization that occurred as vertebrates evolved from…
A: Answer- Animals are adapted and evolved so that they can survive and reproduce well. In tetrapods…
Q: How Do Animals Reproduce?
A: Reproduction is one of the life processes exhibited by living beings.
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: How does the difference in size and cellular contents between spermand eggs relate to their specific…
A: Ovum is the female gamete, in which the cells are rounded spheres and non-motile, and they are not…
Q: Why are sea urchins have external fertilization? What are the adaptive advantages of external…
A: Sea urchins are significant herbivores on coral reefs, & in certain environments they assume a…
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: Create a diagram showing the evolution of the urogenital system for the seven vertebrate classes.
A: The urogenital system is meant by the urinary as well as the genetal or reproductive system. 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: Which tissues and structures develop from ectoderm? frommesoderm? from endoderm?
A: During organic process, 3 primary germed layers, called exoderm, endoderm, and endoderm are shaped…
Q: Define(a) Juvenile phase,(b) Reproductive phase,(c) Senescent phase.
A: In many animals, the life cycle of the organism may include many stages like the juvenile phase,…
Q: How do monotremes, marsupials, and placental mammals differ inhow they reproduce?
A: they are the organism which lays the egg only 5 species are discovered as monotherms they do not…
Q: what reproductive challenges do female sea turtles face ?
A: Sea turtles, sometimes called marine turtles, are reptiles of the order Testudines and of the…
Q: explain why humans are iteroparous organisms
A: Iteroparous is the strategy of reproducing serval or many times during the lifespan. Organisms that…
Q: How are animals classifiedaccording to the germ layerspresent in their embryonicdevelopment?
A: Germ layers are developed during embryogenesis. They are programmed to develop specific organs,…
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: Which ovary is functional in birds?
A: Ovary is the female reproductive organ found in lower chordates to higher animals. Ovary produces…
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: 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: How do amphibians and reptiles mate?
A: Amphibians and reptiles are two ancient groups of vertebrates, which seem to resemble each other but…
Q: How many eggs do you think were released by the ovary of a female dogwhich gave birth to 6 puppies?
A: Reproductive system of female dog comprises of vulva, vagina, cervix, uterus (Y shaped), oviducts…
Q: What distinguishes an amniotic egg from eggs laid by other animals, including fishes, amphibians,…
A: Amniotic eggs are eggs layed by reptiles and birds. The organisms which lay these eggs are called…
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: Name the sex cells of sexually reproducing animal.
A: Sexual reproduction is the production of a new organism in which the male gametes fuse with a female…
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: What mode of reproduction in fishes is described by each of the fol-lowing terms: oviparous,…
A: Reproduction is the biological process by which new offspring are produced from parents, which is…
Q: Describe the reproductive sysytem of male or female lizard?
A: The lizards possess the reproductive organs by which it undergoes sexual reproduction. The…
Q: Is a zygote a fertilized egg?
A: Fertilization is the process whereby gametes from each parent fuse to produce a new cell.
Q: How do the eggs ovulated into the abdominal cavity find their way out of the frog’s body?
A: To understand the path of the egg we need to understand that frogs lay eggs. This process usually…
Q: What is vivipourous and its example in animals kindom?
A: Mammals belong to the class Mammalia. They are vertebrates. It belongs to kingdom Animalia and…
Q: What is fertilized egg known as?
A: Fertilization When male gamete fuses with female gamete, this process is known as fertilization.
Q: Describe and distinguish patterns of reproduction in monotremes, marsupials, and placental mammals.…
A: The mammals belong to the class Mammalia and the main feature of them are the presence of mammary…
Q: Define the function of fat body and kidney in frog reproductive system?
A: The excretory system and reproductive system of the frog are combined into 1 system which is called…
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: Define cellular blastoderm
A: The blastula is made up of a single layer of embryonic epithelial tissue called a blastoderm…
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- What mode of reproduction in fishes is described by each of the fol-lowing terms: oviparous, ovoviviparous, viviparous?How do the two kinds of mammalian reproductive cycles— estrous and menstrual differ?Visit the WRASSE and ANTHIAS GALLERY:https://explore.org/livecams/aquarium-of-the-pacific/pacific-aquarium-tropical-reef-habitatcamMost wrasses are sequential hermaphrodites. What do you think is an adaptive advantage of this characteristic?