What are the four membranes associated with amniotic eggs? What is the function of each of these membranes?

Q: Name the process of development of egg into young one without fertilization?

A: The above-mentioned definition is true for parthenogenesis. It is a type of asexual reproduction…

Q: What are three notable features between the fertilized and unfertilized egg?

A: Sperms and eggs are the gametes produced by male and female animals respectively in sexual…

Q: Why is embryogenesis important in reptile specially in snakes?

A: Importance of embryogenesis in reptiles especially in snakes.

Q: In a developing chicken embryo, what mesoderm lines the amniotic cavity?

A: The amnion, chorion, yolk sac, and allantois are the four extraembryonic membranes found in amniotes…

Q: How do the shape and structure of the uterus of the fetal pig compare with that of the human?

A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…

Q: What are the archenteron and the blastopore? What is the stage of the embryonic development in which…

A: Gastrulation is the phase in the embryonic development of animals. During this phase, the blastula…

Q: What is amniotic fluid?

A: Fetal membranes are not a part of the body of the embryo. These membranes play some role in the life…

Q: Name two structures derived from each of the three embryonic tissue layers: endoderm, ectoderm, and…

A: Two structures derived from each of three embryonic tissue layers are : Endoderm  gives rise to…

Q: Which embryonic germ layer lines the outer surface of the embryo

A: An embryo is the early stage of human development in which organs form critical body structures.

Q: what will the plumule become after the embryo grows? what will the radicle become after the embryo…

A: After the seed receives the necessary conditions for growth such as water, oxygen, right…

Q: How do reptile eggs differ from amphibian eggs? Why is this important?

A: The egg is the female reproductive unit and it is produced by the oogenesis process. It is haploid…

Q: What is cephalization? How does lateral symmetry favor cephalization?

A: Symmetry is the balanced distribution of duplicate body parts or shapes within the body of an…

Q: What is an amnion?

A: The question asks about the amnion.

Q: What is the difference between a mesoderm and a mesoglea?

A: Diploblastic animals contain body wall which develop from 2 embryonic germ layer - ectoderm and…

Q: List and describe the phases of embryonic development; from a zygote through gastrulation.  What…

A: Reproduction is the process of the formation of offspring from their parents. There are two modes of…

Q: What are the types of twins and which of them share a placenta and amniotic sac ?

A: Twin pregnancies occur when the mother conceives two fetuses. Twins are classified based on the…

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: Explain how the flat embryonic disc takes on the cylindrical shape of a tadpole.

A: The embryo is the first phase of the development of the offspring. The life cycle starts shortly the…

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: Where is the egg located in the archegonium?

A: In Bryophytes plants, the female and male sex organs are termed archegonia and antheridia…

Q: What is the difference between zygote and embryo?

A: The process of embryogenesis and fetal development initiate after the event of fertilization. It is…

Q: How is an egg (oocyte) prepared during oogenesis for fertilization? Why is preparation essential to…

A: Oogenesis is defined as the process by which the female sex cells or ova or egg cells are produced.…

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: . 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 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: What is the role of gnathostomata in vertebrates?

A: Phylum Chordates are characterized by the presence of four diagnostic characters notochord, dorsal…

Q: Describe embryonic gastrulation in protostomes vs. Deuterostomes

A: Protostomes:  The clade of animals originally thought to be characterised by the formation of the…

Q: What are the four extraembryonic membranes of amniotic eggs of birds and other reptiles and what is…

A: Step 1 Extraembryonic membranes are those membranes that surround the embryo of terrestrial…

Q: Part IlI: Discussion 1. How can you distinguish an unfertilized egg from a fertilized egg? 2. As…

A: Fertilization is a natural phenomenon of producing mature male(sperm) and female(egg) gamete in…

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 is the expansion of TADS?

A: Expanding the skeletal transverse maxillary deficiency with Microscrews or temporary skeletal…

Q: Regarding mammals, amphibians, and reptiles, explain thoroughly in what way does the inert yolk's…

A: Evolutionary developmental biology is considered a new norm in evolutionary biology. It arose from…

Q: From what the amnion of mammalian embryo is derived?

A: Amnion is an extraembryonic membrane also known as fetal membrane along with chorion, allantois, and…

Q: What happens to the second sperm nucleus, the one that does not fertilize the egg cell? What is the…

A: Sexual reproduction is a fusion of male and female gametes to produce offspring from the zygote.…

Q: Is a zygote a fertilized egg?

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

Q: Do frogs have a cecum?

A: Biology is a branch of science that studies about the living organisms. The biology studies about…

Q: What structures carry the egg from the ovaries to the uterus? Are these structures the same in all…

A: Introduction The ovary is a female reproductive organ that produces an egg called an ovum. This goes…

Q: What is fertilized egg known as?

A: Fertilization When male gamete fuses with female gamete, this process is known as fertilization.

Q: What is the difference between the testes of shark and frog?

A: Testes are the male reproductive organ that is responsible for producing spermatozoa or male…

Q: What is the difference in gastrulation and blastula process?

A: Answer : the difference between gastulation and blastula process is :    Gastulation is the stage of…

Q: In a chicken embryo, What is the double membrane separating the pharyngeal pouch and furrow?

A: The animal body is a very complex creature made up of several systems. Each system in the body has a…

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 occurs in the female after fertilization of the egg? What happens if the egg is not fertilized?

A: The menstrual cycle refers to the monthly series of changes that a woman's body undergoes in order…

Q: Amniotic eggs, compared to non-amniotic eggs, are a useful adaptation for

A: Amniotic eggs have  extra-embryonic membranes such as amnion ,chorion and allantois which have…

Q: Explain: Is the degenerating blastocoel visible in the frog gastrula? How much yolk protrudes…

A: Introduction :- In early mammalian embryos, a blastocoel is a chamber that is filled with fluids,…