Q: Describe the movement of cells during early development that change an embryo from a blastula to a…
A: To describe: The movement of cells during early development that changes an embryo from a blastula…
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: 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: Name the three primary germ layers and explain how they develop in the embryonic disc?
A: Once the implantation has successfully taken place, the cells start to divide and develop into an…
Q: How do the location and the relative size of the bulbourethral glands of the fetal pig compare with…
A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…
Q: What impact does the growth of the uterus during pregnancy have on other organs of the abdomen?
A: During pregnancy, the uterus grows slowly as the fetus grows and develops. The upper part of the…
Q: In a developing chicken embryo, what mesoderm lines the amniotic cavity?
A: The metamorphosis of an egg into a chick is among nature's most amazing feats. After only three…
Q: The yolk sac is connected to the embryonic _____ by way of the vitelline duct. a. liver bud d.…
A: The yolk sac is connected to the embryonic _____ by way of the vitelline duct.
Q: What is an amnion?
A: The question asks about the amnion.
Q: Explain why growth of the blastomeres cannot take place during cleavage?
A: Development in biology occurs to ensure the formation of multicellular organisms from the single…
Q: What is foetal ejection reflex? How does it cause parturition?
A: Answer: Introduction: Foetal ejection reflex is called as the Ferguson reflex means the slight…
Q: HUMAN DEVELOPMENT What organs were produced at the start of development? Towards the end of…
A: Human development allows the human beings to form specialised structures like organs during their…
Q: When does gastrulation occur?
A: Gastrulation occurs during week 3 of Human development. The process of gastrulation generates the…
Q: What are the functions of amniotic fluid?
A: The newborn fetus comes with an umbilical cord. This cord ends up with two umbilical arteries and…
Q: How does human foetus derive nutrition?
A: A fetus is also called as foetus. It is an unborn offspring, from the embryo stage (the end of the…
Q: Humans have three openings in an analogous place. Why is there a difference in the number of…
A: Hello! Since you have posted multiple questions we are answering only one question here as per the…
Q: What are some of the uses for the yolk from the fleece of a sheep?
A: Sheep are quadrupedal, ruminant warm blooded creatures normally kept as domesticated animals. Like…
Q: What's the process of gastrulation in humans, how the embryo forms the three germ layers, and which…
A: The inner cell mass which is known as Blastula is now grown into a cell mass known Gastrula and…
Q: What is the role of malpighian tubules in cockroches?
A: The Malpighian tubule system can be defined as a type of excretory system and also known as and…
Q: What is the significance of gastrulation?
A: Gastrulation is the embryonic stage in which all the germinal layers are being developed. It is a…
Q: After the blastula stagewhat is the following stage ofthe embryonic development?What is the passage…
A: The process by which the embryo forms and develops is known as embryonic development. It includes…
Q: What triggers activation of the egg?
A: The sperm of several species are attracted to the eggs of their own species by the process of…
Q: Explain the implantation of blastula and differentiate the embryonic from extraembryonic tissues.
A: The development of multi-cellular organisms begins from a single-celled zygote, which undergoes…
Q: In a developing Chicken embryo, what is the fate of the postanal gut?
A: Postanal gut is the the extreme end of the alimentary canal.
Q: What determines the antero-posterior polarity in vertebrate embryos?
A: The Anterior-Posterior (AP) axis is an embryonic axis that helps the animals to travel…
Q: When is amniocentesis performed?
A: Fertilization is key process in sexual reproduction. When male and female gamete unites successfully…
Q: What is the germ layerfrom which the coelomsoriginate?
A: During embryonic development, three germ layers are formed. They include an outer layer called…
Q: 1. Discuss the formation of cleavage of sea urchin 2. Discuss the formation of gastrulation of sea…
A: Sea urchins show radial holoblastic cleavage. The first and the second cleavages are both meridoneal…
Q: What feature of the human cecum is lacking in the fetal pig?
A: The large intestine is also called as the large bowel. The large intestine is the part of digestive…
Q: In gastrulation explain reorganition of the embryonic cells, formation of germinal layers and name…
A: Gastrulation is a process that occurs during embryonic development in which the embryo from a…
Q: How the Gastrointestinal system is involved in puberty, reproduction, and pregnancy. What is the…
A: The gastrointestinal tract might appear to be basically a since quite a while ago, twisted hole into…
Q: Which embryonic germ layer lines the inner surface of the archenteron?
A: Germ layer can be seen in embryonic development in animal embryogenesis. It is the layer of cells.…
Q: What is the expansion of TADS?
A: Expanding the skeletal transverse maxillary deficiency with Microscrews or temporary skeletal…
Q: What are the defferent mechanism the egg employed to ensure that only one sperm cell will fertilize…
A: Polyspermy is a fatal condition in which several sperm nucleus engage with the female nucleus.…
Q: What is gastrulation? Howduring gastrulation are thefirst two germ layers formed?What are these germ…
A: Reproduction is the process of development of new offspring from the existing organisms. It is of…
Q: In a developing chicken embryom, what is the fate of the postanal gut?
A: A postrectal extension of the embryonic hindgut to the cloacal membrane where the anal opening forms…
Q: What is a fertilized egg called?
A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…
Q: What are the organs upper end and lower ends of oesophagus connected to?
A: Oesophagus ( also sometimes mentioned as Esophagus) is a cylindrical tube-like structure,…
Q: Where does the embryo get oxygen and release carbon dioxide? Hint: Where do vascular systems come…
A: From the given question, the given embryo is assumed to be bird’s embryo.The early stage of the…
Q: what is amniocentesis?
A: Prenatal genetic tests are conducted before the birth to detect any genetic disorder. It helps to…
Q: Identify the types of movements during gastrulation. 2. Based on your answer in question 1, discuss…
A: The process of the formation of gastrula from the blastula is called gastrulation. It involves…
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: Name two organ-system derivatives of each of the three germ layers.
A: A germ layer is a gathering of cells in an undeveloped organism that collaborate with one another as…
Q: Name the peritoneum that attach ovaries with the abdominal wall.
A: The female reproductive system performed diverse functions. It produces ovum also known as an egg.…
In a developing chicken embryo, What is the fate of the post anal gut?
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- Describe the movement of cells during early development that change an embryo from a blastula to a gastrula. Name the three main germ layers, describe their relative locations, and list the fates of the cells descended from each layer. What is the name and significance of the opening in the gastrula?In a 10mm developing pig embryo, Does the intestine communicate with the urogenital sinus? Yes or No, How?"What happens to the pronephric, mesonephric, and metanephric tubules in amniote?"
- 40. A 9-month-old boy is brought to the office for a follow-up examination. He has had six episodes of respiratory tract infections and has had frequent constipation since birth. He is unable to sit up or roll over. Laboratory studies show hypoparathyroidism. The most likely cause of these findings is failed development of which of the following embryologic structures? A) First pharyngeal groove B) First pharyngeal pouch C) Second pharyngeal groove D) Second pharyngeal pouch E) Third pharyngeal groove F) Third pharyngeal pouchWhat are the roles of the chorion and amnion in terrestrial vertebrate embryos?Humans have three openings in an analogous place. Why is there a difference in the number of openings in pigs and humans? Describe two functions of the mesentery. Why is the ductus venosus no longer needed when the pig is born?
- What is the difference in gastrulation and blastula process?Gastrulation is the (a) formation of three germ layers by the epiblast at the primitive streak, (b) formation of the placenta, (c) same as cleavage, (d) folding of the gut into a tube during week 4.Is there a region of the blastocoel wall that is already committed to becoming the ventral side of the larva?