The folding of ectoderm on the top of the embryo during organogenesis produces...? Group of answer choices a. somites b. the archenteron c. the neural tube d. the gastrula e. the blastula

Q: Which of these functions explains the role of hormones in the reproductive systems? A. Influence…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Discuss how the development of an artifi cial placenta is an important step in the study of…

A: The artificial placental involves the fruitful transportation of a hatchling weighing somewhere in…

Q: hy is it that the first trimester of pregnancy the most critical in humans? How will you relate it…

A: It is the early phase of pregnancy. The first trimester is marked as 1st day after your last period…

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

A: In early embryonic development, all the animal cells form layers known as germ layers. There are…

Q: The seven-day blastocyst: A. has a single layer of trophoblast at the embryonic pole B. has an…

A: The correct option is C.

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: The cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called…

A: The early stage in the development of the embryo is referred to as gastrulation. Gastrulation is a…

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: All fish, all birds and all mammals are A animals with internal fertilization. B carnivores. C…

A: Classification of animals includes the following phyla:Phylum - PoriferaPhylum - CnidariaPhylum -…

Q: Which developmental stage is mismatched? a. second week—implantation b. third week—heart development…

A: Option D is mis Matched

Q: Chorionic villi develop from:- a. the zona pellucida. b. the endometrium. c. the…

A: Chorionic Villi sprout from the chorion after their rapid proliferation in order to give a maximum…

Q: A gastrulation does NOT Select one: A. Consist of endoderm, mesoderm, and ectoderm B. Result in the…

A: In developmental biology, gastrulation is a stage early in the embryonic development of many…

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: Which of the following statements is FALSE? a. VegT and Veg1 induce both dorsal and ventral…

A: Here, we have to select the incorrect statement regarding development.

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: Which of the following is not derived from the ectoderm? a. adrenal medulla b. epidermis of skin c.…

A: The cell is known to be the fundamental unit of all life forms. Those who are similar in functions…

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: Somites a. begin forming at the tail end of the embryo and then move forward in a wavelike…

A: Introduction: Somites can be defined as the longitudinal series among other series of blocklike…

Q: 4. Sarcomas and hematopoietic cancers are both derived from which germ layer? A. Ectoderm B.…

A: "Cancer" is a fatal disease that has both physical and mental consequences for a person. Cancer can…

Q: All of the cell types of an adult vertebrate develop from three primary embryonic germ cell layers,…

A: The three germ layers: ectoderm, mesoderm, and endoderm give rise to various tissues. The ectoderm…

Q: If cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface…

A: The gastrula formation occurs during the early stage of cell development. During gastrulation 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: A A Mesoderm Ectoderm Endoderm In the above diagram, there is an opening that has appeared on the…

A: Developmental biology is the study of the process by which organisms grow and develop.

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: Match the terms in column A with the descriptions in column B. Column A a. blastocystb. chorionic…

A: Developmental Biology is the field of biology that studies the processes by which multicellular…

Q: The zona pellucida is important in mammals because it...

A: The zona pellucida is a thick extracellular layer that covers all mammalian eggs and preimplantation…

Q: Which of the following is a gonad? Group of answer choices   A. vagina B. vas deferens C. ovary D.…

A: Gonad is the primary reproductive gland that produces reproductive cells or gametes. Gametes can be…

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: The cortical reaction of sea urchin eggs functionsdirectly in(A) the formation of a fertilization…

A: Sea urchins are the globular animals that belong to the class Echinoidea. They come under the…

Q: 1. Embryonic development occurs during this period. A. from the ninth week of gestation to birth…

A: Here I discuss about embryonic development and gastrulation.

Q: Researchers searched for an activator of neural tissue formation. What is the real pathway for this…

A: In this question, from the given choices, we have to select the correct option for neural tissue…

Q: 1. salping/o, a. pelvic floor in male and female anatomy b. passageway between the uterus and the…

A: The female reproductive system includes the major organs such as uterus, fallopian tubes 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: D E Figure 42.11 Use the figure above showing human embryonic developmental day 14 to ans The…

A: Embryo is pre birth stage. It is formed just after fertilization and is followed by fetal stage. It…

Q: Which of the following statements is false? a. Cadherins, but not integrins play a role in…

A: Fertilization takes place when the nucleus of the sperm fuses with nucleus of the eff. A zygote is…

Q: Match the 3 germ layers with the specific structures they will develop into.   Question 10 options:…

A: The reproductive growth process takes place in three principal stages. The first two weeks after…

Q: What do the inner and outer surfaces of the placenta consist of? a) amniotic tissue and corpus…

A: Placenta is a organ that connects the mother's uterus with baby's Umbilical cord.

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: Which of the following statements is NOT correct about the umbilical cord?   a. The umbilical cord…

A: There are 4 extraembryonic membranes that support the growing embryo namely the Yolk sac, Allantois,…

Q: Which of the following statements regarding the formation of human twins is INCORRECT? a. Nearly…

A: Twins can either be monozygotic or dizygotic and hence identical or not. They may share identical…

Q: atch the germ layer on the right with its contribution to the tissues and organs of the embryo, on…

A: Endoderm, ectoderm, and mesoderm are the three germ layer types. Tissues and embryonic organs…

Q: A. What are the cell movements (ex. Epiboly, involution, etc.) involved in human gastrulation?…

A: Gastrulation is the stage in embryogenesis where three germ layers are formed.

Q: a) The names of three germ layers are 1) Ectoderm 2) Mesoderm and 3) Ectoderm (Describe relative…

A: During embryonic development, a germ layer is a fundamental layer of cells that arises. The endoderm…

Q: 1. Shortly after implantation, tissue from the embryo normally grows into the wall of D с. C B d. A…

A: The given figure is that of female human reproductive system .