During the embryonic developmen, the trophoblast will developed into  Select one: A. The embryonic disc B. The chorion C. The amnion and amniotic cavity D. The yolk sac

Q: Describe the process of development, from fertilization to parturition.

A: Fertilization- It occurs in fallopian tubes and leads to the formation of a diploid…

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: Placenta ... a) ... develops from trophoblast cells. b) ... develops from embryoblast cells. c)…

A: Pregnancy occurs when the male gamete sperm fuses and fertilizes with the female egg that is…

Q: The first week of human development is characterized by formation of the: A. inner cell mass B.…

A: The correct option is E - all of the above

Q: The umbilical cord connects the developing fetus to thea. mother’s belly button.b. placenta.c.…

A: Reproduction is the process by which an organism creates more of its own progeny. During…

Q: embedded

A: The Uteroplacental circulation is the vascular contact that is present between the uterus and the…

Q: Nutrient and waste requirements for the developing fetus are handled during the first few weeks by:…

A: Endometrium is the innermost lining of the uterus which undergoes cyclic changes during…

Q: The surface that enables active and passive exchange between the fetal and maternal bloodstreams is…

A: Answer is b.)  chorionic villi.

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: Which of the following consists of both fetal and maternal tissues? (a)umbilical cord (b) placenta…

A: The unborn offspring that is known to develop from an embryo is called the fetus. The overall…

Q: Which of the following is required for successful fetal development after the egg has been…

A: When sperm successfully enters and fuses with the ovum fertilization occurs. This genetic material…

Q: The foramen ovale causes the fetal circulatory system to bypass the ________. a. liver b. lungs c.…

A: A shunt is defined as an anatomical diversion which allows the flow of blood to bypass organs such…

Q: Internal and external fertilization differ in that species thata. produce an amniotic egg have…

A: The external fertilization process usually takes place in an aquatic environment where the male and…

Q: What part of the blastocyst develops into the embryo?a. Yolk sacb. Placentac. Polar bodyd. Inner…

A: The time taken for the complete development of the fetus inside the uterus is known as the…

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: At what stage uteroplacental circulation started?  a.Maternal blood entering the lacunar  b.Embryo…

A: The uteroplacental circulation is a circulatory framework where two circulation systems, the fetal…

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: After the zygote undergoes several mitotic divisions, the resulting structure that implants in the…

A: Fertilization is the process in which gametes fuse to form a zygote. The zygote undergoes several…

Q: The feature that distinguishes a fetus from an embryo is that the fetus has a. All of the organ…

A: Answer is a.) All of the Organ systems.

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: For the first 8 weeks of gestation, a conceptus is nourished mainly by a. The placenta. b. Amniotic…

A: A conceptus receives nutrition is totally depends on the state. The foetus stage receives nutrition…

Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…

A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…

Q: Umbilical cord contains A allantois B yolk sac C arteries veins

A: The umbilical cord is a stretchable, tubular  structure which joins the fetus to the mother during…

Q: Blood islands first form in the embryonic:- a. spleen. d. liver. b. yolk sac. e. red bone marrow. c.…

A: Blood Islands are structures that form around the developing embryo and which give rise to the…

Q: Which of the following statements is incorrect?a. The placenta secretes hormones such as…

A: The placenta is a temporary organ that is formed in the uterus during pregnancy. The umbilical cord…

Q: Give the function/purpose of the following terms: germ layers ectoderm mesoderm

A: Introduction :  After implantation of the embryo into the uterus, the embryo differentiates into…

Q: Which of the following is common to the development of bothbirds and mammals?(A) holoblastic…

A: Birds are any warm-blooded vertebrate of the class Aves. Birds have forelimbs modified into wings, a…

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: The..........is a hollow ball of cells that develops from the morula. a) Blastocyst b) Oviduct c)…

A: The fusion of male gamete (haploid) and female gamete (haploid) is known as fertilization. It…

Q: Which tissue type or organ is correctly matched with its germ layer tissue? A) nervous–mesoderm B)…

A: Introduction :- The mesoderm is a germ layer that develops between the ectoderm, which produces skin…

Q: In human embryogenesis, how many hours does it take after fertilization to form the following; a.…

A: Embryogenesis  Embryogenesis refers to the stages of developing embryo. The embryogenesis start just…

Q: Which of the following extra-embryonic membranes becomes the embryonic portion of the structure…

A: Extraembryonic membrane are the extra membrane that are formed outside the growing embryo . There…

Q: The embryonic stage is completed by the end of the ___________________ week of development.

A: Embryonic development or embryogenesis is the mechanism or process by which an embryo. forms and…

Q: Placenta is the structure formed: A. by the union of foetal and uterine tissue B. by foetus…

A: The uterus or womb is a hollow muscular organ which is located in the pelvis of female between the…

Q: Place the number corresponding to the correct germ layer in the blank.   ____ Mesoderm ____…

A: During gastrulation, the hollow sphere of balls called blastula develops into a gastrula.…

Q: In the documentary film "Life inside the Womb by Body Atlas". This film shows the physical…

A: The film “Life inside the Womb by Body Atlas” describes the formation of a baby inside the fetus of…

Q: Explain the way in which the yolk amount affects the cleavage. Compare the Cleavage in a sea star…

A: Yolk  Yolk is a nutrient rich part of the egg which support the growth of developing embryo.

Q: How does amount of yolk affect cleavage? Compare cleavage in a sea star with that in a bird

A: Fertilization is the process of fusion between haploid male and female gametes to form diploid…

Q: Which statement relating to frog gastrulation is INCORRECT? a. A second set of bottle cells…

A: Embryonic development refers to the division in zygote and growth that ultimately goes through…

Q: Which of the following describes the importance of the formation of the morula in early human…

A: The fertilization leads to development of the first diploid cell which is called a zygote. By day…

Q: A change in the amount of yolk and its distribution in the egg will affect:   A Fertilization…

A: Fertilization is the fusion of haploid male and female gamete results in the formation of the…

Q: explain the developmental processes that will happen to the fertilized ovum of a dog or any animal

A: The individual entity that embodies the attributes of life is known as an organism. There are two…

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: The birth starts thanks to increased ...

A: The correct option is B . Release of Oxytocin

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: Fill in the blank:  The embryonic membrane that is attached to the edge of the embryonic disk and…

A: An embryonic membrane is a type of membrane that originates from the fertilized egg cell, and are…