Q: List the advantages of evolving a deuterostome pattern of development.
A:
Q: Is the sperm or the egg responsible for the sex of the chicks?
A: Sex determination is process by which the sex of the foetus can be determined. The sex in organisms…
Q: What selective forces might limit the stage of development at which humans are born?
A: Introduction: The evolution of humans are influenced by the following five factors: Natural…
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: From what germ layers are face and mouth formed? Describe this germ layers
A: The germ layers are the embryonic group of cells that help in the development and formation of…
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: Contrast developmental activities in embryos before and after they reach the mid-blastula…
A:
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: 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: Explain why breastfeeding can have lifelong, favorable consequences for the development of infants…
A: *Basically in the poverty stricken areas they are unable to consume the required diet as lack of…
Q: How does oviposition occurs in female turtles. Provide the pathway involved in the oviposition…
A: Answer :- As we know that Males have a couple of penises that pass sperm from their cloaca to the…
Q: Differentiate the primitive streak of the 24-hour from the primitive streak of the 18-hour
A: Primitive Streaks and its peculiar shape at various stages--- Primitive streak is very important…
Q: Which type of cleavage leads to the development of a bird?
A:
Q: Explain early development of human from fertilization to hatching of the blastula.
A: Fertilization can be defined as the male gamete's fusion to the female gamete to form the zygote. In…
Q: Explain how egg rotation and gravity determine anterior posterior patterning in chick embryos
A: Anterior posterior pattern formation is the regionalization process in which specific areas of cell…
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: A fertilized egg is the blue print of future development’. Explain
A: A single cell-fertilized egg is transformed into a fully developed and independent individual. It is…
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: If Ca2+ from the egg’s endoplasmic reticulum is responsible for the cortical granule reaction and…
A: Reproduction is the process of production of own kinds.
Q: Why is it more difficult to determine the sex of a newlyhatched canary than a newborn puppy?
A: A sex-determination mechanism is a physiological system that controls how an organism's sexual…
Q: Ectodermal Derivatives of the Developing Chick Embryo A. 33-hour Chick Embryo Transverse…
A: 1. Neural is situated in the region of or on the same side of the body as the brain and spinal cord…
Q: What is the difference between direct and indirect development?
A: Development refer to the process of the formation of the adults from the progeny stage. There are…
Q: Briefly explain how and why the yolk distribution in mammalian eggs has changed from their…
A: According to Bartleby expert, when multiple questions are posted we are allowed to answer the first…
Q: what does a "fetal development" concept map look like with 10 words or phrases?
A: Fetal development in shortest words.
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: How does von baer's law of development relates with the development of the frog embryo? evidences?
A: Von Baer's laws of development These are rules proposed by Karl Von Baer. The laws demonstrates the…
Q: What are qualities to look for when assessing a latch on for a newborn that is breastfeeding
A: There are many sign of good latch including or qualities assesing during breastfeeding : 1. The…
Q: What is the fate of the four extraembryonic membranes in embryos of placental mammals?
A: Any of the tissues, derived from the fertilized egg, that encase or in any case add to the help of…
Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…
A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…
Q: In traditional accounts of fertilization, which characteristics are associated with eggs, and which…
A: The female reproductive cell, or gamete, in most anisogamous species is the egg cell, or ovum…
Q: explain Three egg types in variegated four-o’clocks.
A: Four o clock plant or Mirabilis jalapa refers to the perennial bushy flowering plants. These plants…
Q: Question #1 What is importance of pharyngeal pouches in development? Question #2 What duct empty…
A: Bile is a type of fluid that is made and released by the liver. Bile is stored in the gallbladder.
Q: During the embryonic developmen, the trophoblast will developed into Select one: A. The embryonic…
A: Developmental biology focuses on the study of developmental sequences of organisms. The embryonic…
Q: Describe each stage of the development from fertilized egg to blastocyst stage
A: Fertilization is an important part of sexual reproduction. The nucleus of the male gamete or the…
Q: What is indirect development?
A: Development involves the functional and physiological maturation of an individual. It is a…
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: Briefly summarize the main phases of animal development from fertilization to organogenesis, and…
A: After a sexual intercourse , the fertilization process takes place. Once the fertilization takes…
Q: explain the developmental processes that will happen to the fertilized ovum of a dog
A: The age at which dogs reach sexual maturity varies considerably. Smaller breeds appear to mature…
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: What is a doula? What does human development research say about the use of support during labor?
A: The term doula is derived from a greek word which means helper or maid servant. A doula is not…
Q: Label the parts of the chick embryo
A: Parts Of The Chick Embryo oropharyngeal membrane angiogenic cell cluster Ectoderm Endoderm…
Q: To what extent has mesoderm migrated in the blastoderm of the 24 hour chick embryo
A: After twenty-one days of incubation, a chick emerges from a fertile egg. On the surface of the yolk,…
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,…
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- Question #1 What is importance of pharyngeal pouches in development? Question #2 What duct empty into the common bild duct?explain the developmental processes that will happen to the fertilized ovum of a dog .. Draw and label parts of whole mount of chick embrogenesis specimens of the following stages: Primitive Streak Head formation Flexion and Torsion: Stage 13 Flexion and Torsion: Stage 16 Early Somite: Stage 7 Early somite: Stage 10 Limb-bud: Stage 19 Limb-bud: Stage 21
- What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?How is and egg (oocyte) prepared during oogensis for fertilization? Why is preparation essential to development?Explain why breastfeeding can have lifelong, favorable consequences for the development of infants in poverty-stricken regions of the world?