To what extent has mesoderm migrated in the blastoderm of the 24 hour chick embryo

Q: Write notes on holometabolous development

A: Metamorphosis is the biological mechanism by which an animal physically develops after birth or…

Q: List the four primary tissue types of the adult body and identify which of the three primary germ…

A: A tissue is defined as a group of cells which are having a similar structure and are organized to…

Q: Give the origins and functions of the chorion, amnion, allantois, and yolk sac.

A: The extraembryonic membrane can be defined as the type of membrane which helps in the development of…

Q: Describe the processes of fertilization, embryonic development, fetal development, and birth.

A: Answer- Every organism reproduces for their continuity of species. In sexual mode of reprodution the…

Q: State the exact location of ocellar spots.

A: Ocellar spots are the simple eye present in many invertebrates. Invertebrates are the organisms that…

Q: Identify the organ systems that are formed from each of the primary germ layers.

A: Endocrine System is the organ system that is formed from each of the primary germ layers.

Q: describe implantation including the process of placentation, embryonic development, and membrane…

A: The processes of implantation, placentation, embryonic development and membrane formation occurs…

Q: State some functions of amniotic fluid.

A: The embryo inside the womb of the mother grows in a sac like bag called the amniotic sac. This sac…

Q: Explain the Fertilization and Early Stagesof Development ?

A: The reproductive system(male and female) is a complex system with a number of interconnected…

Q: State the functions of the placenta, amnion, chorion, yolk sac, and allantois?

A: The placenta is developed during pregnancy in the uterus. It provides oxygen and nutrients to the…

Q: What is yolk? What is its role in fertilization and development?

A: The development of organisms depends on the supply of resources. In embryo development nutrition of…

Q: How is the yolk sac formed?What is the function of theyolk sac?

A: Yolk sac is the membranous sac attached to the embryo. It is also known as umbilical vesicle.

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: elaborate on the relationships between the three germ layers in forming the mouth and facial…

A: The three main layer of body parts are ectoderm ,mesoderm and endoderm . We know that mouth is…

Q: Describe the fertilization process and how an egg prevents fertilization by more than one sperm?

A: The reproductive system of the body is one of the important systems of the human body which ensures…

Q: Define segmentation, and give two examples of segmented structures in the embryo.

A: The science that investigates the processes by which multicellular organisms like plants and animals…

Q: describe the process of progressing from zygote to blastocyst

A: In human development many stages occur like the zygotic stage where sperm get to meet with female…

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: Distinguish between modes of mesoderm formation

A:

Q: Describe the major events in embryonic development

A: Introduction: Embryonic development is an 8-week process and has phases of development during which…

Q: Explain the juvenile phase.

A: Growth is defined as the process of permanent increase in size and complexity of an organism during…

Q: Describe what happens during the first days of embryonic development from the first cell division…

A: Human embryo development occurs through cell division and the differentiation of cells. Human embryo…

Q: Explain the major developmental events that occur during the embryonic period.

A: Introduction:Embryonic development is an 8-week process and has phases of development during which…

Q: Identify the features and physiological changes of the postnatal stages of life.

A: Postnatal period is the phase post birth. Puerperium is the term used to define this phase.…

Q: Describe the process of embryonic induction, and provide anexample

A: Induction in biology means inducing a process or causing a process to occur.

Q: Explain the Embryonic Germ Layers ?

A: The layers of cells produced during the early phase of embryo development which gives rise to the…

Q: Explain the rationale for periodic revaccination in childrenand adults.

A: The adaptive immunity must be acquired through the encounter of various pathogens. In general, B…

Q: Identify the labeled structures in the embryo shown:

A: Archenteron is a structure which is observed in a developing embryo in the Gastrulation stage. It is…

Q: C. Explain the functions of the four layers found inside an amniotic egg.

A: Amniotic eggs are eggs that produce by mammals, birds, reptiles etc. The embryo development take…

Q: Describe the major developments during each trimester of human gestation.Describe the major…

A: Gestation is the time of advancement during the conveying of an embryo or fetus inside viviparous…

Q: Describe the major events that occur during embryonic development, and give the time period during…

A: Embryonic development is also known as embryogenesis. This phase begins with the fertilization o the…

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 is the yolk formed in terms of embryogenesis

A: Embryogenesis is the course of improvement of an undeveloped embryo from the zygote. In…

Q: List and describe some developmental anomalies associated with gastrulation.

A: The term gastrulation basically address the early development of embryo from 1-D layer of epithelial…

Q: Give the approximate length of the various parts of the oviduct of a female chicken including its…

A: The different parts of oviduct of a female chicken along with their length are: Infundibulum: 2…

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: Explain the importance of calcium in internal and external fertilization.

A: The fusion of gametes, mainly from two opposite sexes, is referred to as fertilization. The…

Q: indicate the duration of the embryonic vs fetal period.

A: Gestation is divided into pre-embryonic, embryonic and fetal stages. The embryonic stage starts from…

Q: What happens in the 3rd- 8th stage of embryonic stage of prenatal development? A major milestone…

A: Embryonic stage: The beginning of third week after conception marks the start of the embryonic…

Q: Explain how the different germ layers give rise to different tissue types.

A: The three different germ layers are formed by the process of gastrulation in early embryo. It is the…

Q: Trace the pathway of the ova of the female frog from the place of production up to the place of…

A: Introduction:- The ovaries produce the female egg cells, called the ova or oocytes. The oocytes are…

Q: The order in which the physiological stages occur during embryonic development is and

A: The fusion of haploid male gamete(sperm) and female gamete(egg/ovum) to form diploid zygotes is…

Q: Illustrate a grastula showcasing the three germ layers and label it

A: Fertilization is the process in which male and female Gametes bind to form embryo . Embryo undergo…

Q: Label the parts of the chick embryo

A: Parts Of The Chick Embryo   oropharyngeal membrane  angiogenic cell cluster  Ectoderm   Endoderm…