Can the dorsal lip of the blastopore inducecells in another part of the amphibian embryoto change their developmental fate?

Q: Is the type and pattern of the cleave of an egg the same to all species of animals?

A: During the mitotic division, the cytoplasm of the egg is divided into multiple parts which then…

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: Identify the stage(s) of embryonic development in whichcross sections of all chordate embryos…

A: Embryology is the study of development and growth of fertilized egg(zygote) into mature embryo. The…

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: Identify the characteristics of protostome development: Select one or more: O spiral cleavage…

A: Protostomes are organisms which shows formation of mouth before formation of anus during embryonic…

Q: astrulation, are there any evidences of cephalization? Why or why not?

A: Gastrulation: During gastrulation, cell motions cause the embryo to reorganise massively,…

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: Along the notochord, segmented blocks of tissue that give rise to muscles, vertebrae, and connective…

A: Answer is d.) somites.

Q: What do you call the movement in which the yolk plug is formed in amphibians?

A: Introduction:- The residual patch of endodermal cells generated after the formation of the dorsal…

Q: The dorsal hollow nerve chord of chordates derives from the [Select ] * and is found v [Select ] Fto…

A: All the animals on the planet are classified under kingdom Animalia. The animals are classified…

Q: Illustrate an egg in the morula stage. How does its size compare with that of the fertilizied egg?

A: MORULA STAGE OF EGG- It is an early stage of embryo consisting of 16 cells called blastomeres  which…

Q: Spiral cleavage can occur in both deuterostomes and protostomes (True/False)?

A: Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops…

Q: O Blastula Gastrula O Fertilized egg O Unfertilized egg O Morula

A: Introduction:-   The fusion of hapliod gamets ,egg and sperm to form the diploid zygote is called…

Q: Describe the differences between protostome and deuterostome development.

A: Protostomes are organisms whose blastopores develops into a mouth. In comparison, Deuterostomes are…

Q: Which statement is true of Spemann’s organizer?a. It is unique to amphibian embryos.b. It arises…

A: Answer is a.)  it is unique to amphibian embryos.

Q: During the embryological development of chordates, the midline dorsal layer of ectoderm folds in on…

A: In humans (a chordate), by the end of the third week of gestation, three basic germ layers…

Q: What Role Do Hormones Play in Making a Mammal Male orFemale?

A: Hormones are signaling molecules produced by glands that are transported via the bloodstream to the…

Q: postanal gut?

A: Introduction  Take out of digestive Cdx2 produces various results relying on the formative stage at…

Q: Compare the process of gastrulation in amphioxus and birds

A: Gastrulation is a process early in most animals' embryonic development during which the blastula is…

Q: If activity of the organizer is inhibited, what does the embryo become? A mass of notochord. A mass…

A:

Q: How does juvenile hormone affect metamorphosis in insects?

A: Hormones are defined as chemical messengers that are secreted or released directly into the…

Q: In terrestrial arthropods, fertilization is always internal (True/False)?

A: Arthropoda is the largest phylum in the animal kingdom, which includes such familiar forms as…

Q: The outermost germ layer in a vertebrate gastrula is the____ . a. endoderm c. mesoderm b. ectoderm…

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

Q: How do primitive chordates like urochodata and cephalochordata; i. escape predators ii. How do…

A: Urochordata and Cephalochordata are two subphyla of the phylum Chordata. Both Urochordata and…

Q: what structure is the pointer pointing to? O Notochord what germ tissues are those structutres made…

A: There are different types of body structures, each specified for a particular function. These…

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: What are the molecules being secreted by the organizer in a regional fashion such that the first…

A: Development of embryo -- The development in developmental biology gave a milestone by the discovery…

Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula…

A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.

Q: Explain the evolutionary advantage of the amniotic egg

A: Amnion is a membrane which enclose the embryo after it's formed.Embryo is the initial stage of…

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: ''Because of the many later developmental trans-formations that produce the elaborately structured…

A: The germ layers develop early in embryonic life, through the process of gastrulation. Triploblastic…

Q: Internal Anatomy of Female Grasshopper Describe the function of the grasshopper (internal). What…

A: Internal function of Grasshopper:                    The internal cavity of grasshopper piled with…

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 is the role of gnathostomata in vertebrates?

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

Q: Cleavage Gastrulation Neurulation Organogenesis

A:

Q: Explain gastrulation in fish

A: Gastrulation in Fish: - Gastrulation is defined as a process in which gastrula is formed from a…

Q: What are the animal poleand the vegetal pole of thevertebrate egg?

A: An embryo possess some polarity, according to which an embryo is divided into two hemispheres or…

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: In protostomes and deuterostomes, the space between the endoderm and the ectoderm is important…

A: The space between the endoderm and the ectoderm is important in the evolution of protostomes and…

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: Describe how early developmental processes in Eutherian mammals are different from those of other…

A: Hi dear, thanks for your question.here is answer you need .can you please give an upvote to me. The…

Q: Explain the developmental and functional similarities and differences between: Avian amnion and…

A: The membrane , that closely covers the human and various other embryos when first formed, it is…

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: 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: Distinguish between holometabolous development and hemimetabolous development and give 2 insect…

A: The development of insects passes through various stages. Various changes in the morphology and…

Q: Describe the pre-gastrulation morphogenesis found in Amphibian development.

A: The pre-gastrulation morphogenesis found in Amphibian development is an important process that sets…

Q: Which of the following structures give rise to pharyngeal (branchial) arches cranial nerves O Neural…

A: Introduction :- Pharyngeal arches are two structures that grow on either side of the growing…