Answer the following questions briefly (3-5 sentences only). 1. Why does oxygen consumption increase during gastrulation? 2. What is the purpose of applying tiny particles of carbon to the surface of the embryo? 3. What processes cause the change in the form of the embryo during gastrulation   4. Does the environment play a role in the movement of cells?   5. Why is the nuclei of the early cleavage cells considerably larger than they are in ordinary somatic cells?

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: +Describe the process of implantation of the embryo, what cells are involved and their roles.…

A: Implantation is the process where the blastocyst attaches to the endometrium of the uterine cavity.…

Q: please answer all questions based on the attached picture of the frog testis 1. what cells are being…

A: When the frogs are roughly two months old, the putative testis can be seen as a little oval object…

Q: what is the name of the structure where gastrulation begins in each animal below. Frog and fish has…

A: Gastrulation is the process of the formation of the child inside the womb, the complete development…

Q: What is the rationale behind the cleavage stages undergone by the early embryo?

A: Cleavage: The series of synchronized mitotic cell divisions of the fertilized egg that results in…

Q: Mention four (4) important outcomes of gastrulation. Your answer must mention four concepts:(a)…

A: This question is about gastrulation.

Q: 1. pointed structure? 2. What is #1 it made up of? 3. pointed structure? 4. significance of #3? 5.…

A: 1) Ectoderm of head 2) Ectoderm is the layer of skull and it differentiates to form epithelial and…

Q: Activity 1. Define each of the concepts below. Acrosome Amnion Blastocyst Blastula Chorion Cortical…

A: During fertilization the male gamete and the female gamete in the form of sperm and egg unite to…

Q: A friend in your dormitory, a freshman, tells you that she just discovered she is 3 months pregnant.…

A: After fertilization, the fetus develops within 8 weeks. Most of the prescriptive and…

Q: During the formation of mesoderm and its derivative structures and tissues, several of the five…

A: Step 1 The mesoderm is the third germinal layer that appears in the third week of embryonic…

Q: What will guide them to make the right decision?  Do they have a choice?

A: Answer: 1.trophobalst or icm if cells choose to become they will end up in the placenta and if they…

Q: There are 5 primary oocytes that will undergo cell division, How many functional egg cells will be…

A: The journey in short of an oocyte is as follows- the egg follicle is activated, the egg grows and…

Q: -3. The figure below shows cleavage stages in an embryo. From studying the photographs, what can you…

A: On fertilization, the zygote undergoes cleavage. That is the process of development of multicellular…

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: Question 8 The chorionic surface exhibits anastomosing cords or trabeculae of embryonic tissue…

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

Q: Classify and diagram embryos on the basis of their: (a) yolk content, (b) cleavage types, (3)…

A: Cleavage in animals is depends upon amount of yolk. Yolk distribution can be complete ( holoblastic…

Q: 1. Zygote 2. Morula 3. Oocyte 4. Fertilization 5. Clevage 6. Blastocyte The order in which…

A: The stages are as follows : Oocyte Fertilization zygote  cleavage Morula Blastocye

Q: State and explain 5 effects of tobacco smoking by a pregnant mother on the foetus development. (400…

A: Since you have posted multiple questions we solve the first question for you. To get the remaining…

Q: What is the fate of the inner cell mass? Which of the structures produces human chorionic…

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Q: Activity 19.8: Describe and state a function of each of the organ/structure. 1. Perimetrium 2…

A: 1.The perimetrium is the outer serous layer of the uterus. The serous layer secretes a lubricating…

Q: 10. Draw and label a 14-day conceptus showing the chorionic sac, the chorionic cavity. Be sure and…

A: During the early stages of embryonic development, various structures and layers form within the…

Q: . Using your diagram, illustrate the fertilization and implantation of the human egg.   b. What…

A: The fertilization and implantation of human eggs in diagrammatic representations.

Q: Explain the main steps of internal fertilization. Your answer should emphasis the respective…

A: Introduction :- Fertilisation is a process of fusion of male and female gametes , which leads to the…

Q: Gastrulation does NOT Select one: a. involve the formation of germ layers b. consist of endoderm,…

A: Introduction: When the new offspring develops from the existing organisms, the process is referred…

Q: Second, in the answer blanks below, insert the names of the four primary tissues arising from each…

A: The embryo is a multicellular diploid structure arising from the development of a zygote which is…

Q: Answer the following questions: 7. What is the study of comparative embryology? 8. Are sperm and…

A: As per our guideline i can answer only one question but i gave you both of the answer in step 2 and…

Q: Identify and discuss the fate of three germ layers. 2.Give and explain the stages in life cycle of…

A: The three germinal layers are ectodermis, mesodermis and endodermis which are formed during the…

Q: After fertilization a developing embryos goes through several changes. At about 2-3 days, what is…

A: During fertilization the haploid gametes, that is, sperm from a male and secondary oocyte from…

Q: Is the sulcus limitans present at the 72-hour stage? State the derivatives of the sacculus and

A: Embryo development is a process that occurs after the process of fertilization has occurred and the…

Q: Which of the following is the latest stage of embryonic development (of this list)? blastula morula…

A: The development begins after fertilization which involves formation of zygote. After this zygote…

Q: What is the purpose of the placenta? Which part of the blastocyst eventually becomes the fetal…

A: Introduction  An organ that grows in the uterus during pregnancy is the placenta. A developing…

Q: Identify and give the function of the myometrium. 2-What type of epithelium lines the vagina?…

A: Since you have posted multiple questions we solve the first three questions for you. To get the…

Q: Early Embryonic Development Match the following terms to the descriptor. NOTE: If you want to change…

A:

Q: Mesodermal Derivatives of the Developing Chick Embryo 33-hour Chick Embryo Transverse Sections…

A: In the common chick development the formation of heart begins after 30 hours of incubation.  30 to…

Q: 1. Discuss the formation of cleavage of sea urchin 2. Discuss the formation of gastrulation of sea…

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Q: 5 new structures that appeared in the 33-hours chick embryo and indicate the germ layer derivative…

A: The development of a chick embryo can be studied by dissecting the embryo and analyzing various…

Q: What are 2 unique cell biolgical features of the egg and 2 unique cell biological features of sperm?…

A: Key references:Giojalas, L. C., & Guidobaldi, H. A. (2020). Getting to and away from the egg, an…

Q: fill the sentence?  ........is an increase in the number of normal cells of an organ or tissue. for…

A: Cell is the structural and functional unit of life. Cell division is a natural process in which a…

Q: Epithelium-Mesenchyme transitions (MET or EMT) are crucial morphogenetic events occurring during…

A: During EMT transition  there is loss of cell polarity as well as adhesion property of epithelial…

Q: 38, 39- 37 36- 40. 35- 41 42 34 33 43, 32 31 30 45 46 47 0 0 29 48 27 26 25 21 24 20 21 10 19 11 18…

A: A multicellular organism develops from a single cell called a fertilized egg. The fertilized egg…