Q: Discuss the process of gastrulation and embryonic folding?
A: Gastrulation is the process of cell relocation and distinction into three primary germ layers…
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: 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: Which is theextraembryonic membranewhose function is to storenitrogen wastes of theembryo? Is this…
A: The membrane that is known to assist the developing embryo is known as an extraembryonic membrane.…
Q: Is the mammalianembryonic development director indirect?
A: The process of embryonic development is otherwise known as embryogenesis. Fertilization is 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: How important is cell adhesion for the development of mammalian embryo?
A: The fusion of male and female gametes results in the formation of a single-cell zygote. The zygote…
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: 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: Why do mammalian eggs have a small concentration of yolk, while bird and reptile eggs have a large…
A: Eggs are divided into three types on the basis of the amount of cytoplasm present in them. They are…
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: Describe the major events that transform a fertilized egg into an embryo?
A: BASIC INFORMATION FERTILIZATION It is the process of the fusion of the male as well as the female…
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: Name the third tier of embryonal cells in pinus formed.
A: All plants come under the kingdom Plantae. They are eukaryotes, multicellular, and having cell…
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: Explain the Tissue Stages of Development under Early Stages of Animal Development ?
A: The embryo in an animal develops, the cells start to divide, grow, and transfer in specific patterns…
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: 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 extraembryonicmembranes?
A: The embryology is the study of the formation and development of embryonic structures right from the…
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: How does a fertilized egg give rise to an organism with highly differentiated cells that are…
A: Developmental biology is the branch of science that includes the studies of a diversity of…
Q: Draw the diagram of male thallus and female thallus and differntiate them?
A: The thallus is the vegetative a part of the body which will not differentiate into roots, stem, and…
Q: What is developmental mechanism?
A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…
Q: What are embryonic stem (ES) cells ?
A: Stem cells are cells that are undifferentiated or "blank." This ensures they have the potential to…
Q: Which cells are harvested from the early embryo for stem cell research? O enucleated cells umbilical…
A: 23 Answer is all blastocyst cells
Q: Label each tissue with the specific source germ cells: v Gastrointestinal tract A. Intermediate…
A: We are tripoblastic organisms that means we contains three types of germ layers that includes…
Q: What mechanisms have evolved in animals with(a) external fertilization and (b) internal…
A: The process that involves fusion of the male and female gametes namely sperm and ovum respectively…
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: Why are the ectoderm and endoderm called the “germ” layer?
A: Gastrulation is the process of the embryonic development in which cell movements establish the…
Q: Are the extraembryonicmembranes the same in allvertebrates?
A: An embryo is an early phase development for an unborn baby. A small fertilized egg divides and grows…
Q: Most mammals, including humans have alecithal type of egg, which means that there is negligible or…
A: In lower organisms the yolk provides the nourishment to the growing embryo. But in mammals the…
Q: Differentiate between human skin cell and human ovum.
A: Cell is a basic membrane-bound unit and it is often called as the basic building blocks of all…
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 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: A mammalian embryo puts the trophoblast into a hurried frenzy before it decides to proceed to the…
A: Trophoblasts refer to the cells that produce the external layer of a blastocyst. They can be seen…
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: Describe the structure and functions of the four extraembryonic membranes? Compare and contrast the…
A: Hello, the question you have posted is quite lengthy. I am answering the first two parts of 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 determines whether a cell is to become a trophoblast cell or a member of the inner cell mass?
A: The fusion of the egg cell and the sperm cell results in the formation of a zygote. The zygote…
Q: Summerize various metabolic events involved in cleavage and blastulation in different animals.
A: The development of multi-cellular organisms begins from a single-celled zygote, which undergoes…
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: How the fertilized egg of a multicellular organism becomes an adult?
A: The reproductive system(male and female) is a complex system with a number of interconnected…
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: Draw an annotated diagram of the mammalian female reproductive system, making sure to label (name…
A: The female reproductive system presents various purposes. The ovaries provide the egg cells, named…
Q: How do cells communicate, interact, and understand their place in the embryo?
A: Cells: In the human body, cells play a major role which provides the structure, intake the nutrients…
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…
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Solved in 3 steps
- How important is cell adhesion for the development of mammalian embryo?What determines whether a cell is to become a trophoblast cell or a member of the inner cell mass?What exactly is the zona pellucida? Does it make up the plasma membrane, vitelline layer, AND jelly layer of the egg? So it's technically like the extracellular matrix of the egg cell?
- All of the cell types of an adult vertebrate develop from three primary embryonic germ cell layers, e.g. skin epithelium originates from ____ and intestinal epithelium from ____. A)ectoderm, endoderm B)ectoderm; ectoderm C)endoderm; endoderm D)endoderm; ectodermWhat four types of cellular processes must occur to enable a fertilized egg to develop into an adult multicellular animal? Briefly discuss the role of each process. C2. The arrangement of body axes of the discuss the role of each process.How many times larger is the human cell comparedto the bacerial cell? please show callculations.
- How does a fertilized egg give rise to an organism with highly differentiated cells that are organized in space and time?Which embryo (a, b, c) contains totipotent cells, or pluripotent cells? Where are the pluripotent cells? How is totipotency different than pluripotencyFrom what the amnion of mammalian embryo is derived?