One function of the placenta in a 1 point human is to * (1) Allow nutrients to diffuse from the fetal blood to the maternal blood (2) Allow for mixing of maternal blood with fetal blood (3) Act as the heart of the fetus, pumping blood until the fetus is born (4) Permit passage of nutrients and oxygen from the mother to the fetus

Q: The Mullerian ducts in female mammalian embryos develop into…   a)   The vas deferens   b)   The…

A: During embryonic development, the reproductive system goes through a complex differentiation process…

Q: Select your answer from the drop-down menu. Substances from fetus and mother are exchanged across…

A: Explanation: Glucose is the major energy substrate provided to the placenta and fetus. It is…

Q: ......... is not developmental event in human and frog.   After fertilization rapid cycle of…

A: Fertilization is the event that marks the fusion of the female and male gamete which leads to the…

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: How do the shape and structure of the uterus of the fetal pig compare with that of the human?

A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…

Q: 3. (a) What are the four processes that drive embryonic development? (b) What two processes drive…

A: Embryonic development involves the stages of development from formation of a single celled zygote…

Q: Shh is expressed in the most posterior location of the limb bud and works in concert with FGF…

A: Answer :  Shh is found in the posterior region.  If shh is deleted or inhibited there will be…

Q: Some pregnant women experience difficulty with deep breathing during the last trimester. Can you…

A: The human pregnancy is divided into three trimesters. During the last trimester, the baby is…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

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: Describe the biological basis for the 1 : 1 ratio of malesand females at conception in mammals.

A: The reproduction mode in the mammals is sexual with fertilization of the male and the female gamete…

Q: he unlabeled structure (marked by the red arrow), would in fetal life (A) transport deoxygenated…

A: The liver is defined as an organ that is present in the digestive system of the body and is present…

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: What technology would enable a fetus born in the fourth month to survive in a laboratory setting?…

A: First of all, it is nearly impossible that four months (12 or 13 weeks) fetus can survive outside…

Q: 3. During the course of successful prenatal development, a human organism begins as a(n): A) Zygote…

A: The goal of developmental biology is to comprehend how an organism develops—how a single cell…

Q: A full-term newborn has respiratory distress. Ultrasonography shows that the abdominal organs have…

A: The objective of the question is to identify the embryonic structure whose abnormal development…

Q: The main function of the acrosome reaction is to (a) activate the egg (b) improve sperm motility (c)…

A: Answer is d.)facilitate the penetration of egg coverings by the sperm.

Q: In Deuterostomes, nutrient molecules (monomers) are taken in to the space between the endoderm and…

A: Option (a) is incorrect because, in Deuterostomes, nutrient molecules (monomers) are taken up into…

Q: 6. A male newborn has renal agenesis on the right. Which of the following primitive rudiments most…

A: Introduction:-  Renal agenesis is a rare condition in which one or both kidney are not present in…

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: The epiblast forms (a) only the ectoderm, (b) the yolk sac, (c) only the mesoderm and ectoderm, (d)…

A: In the second week of pregnancy, the inner cell mass of the blastula is split into two sheets of…

Q: Explain the developmental and functional similarities and differences between:   1. Avian yolk…

A: Three fetal membranes are present in mammals; yolk sac, amnion, and allantois. Yolk sac and…

Q: In humans, the development of fertilised egg takes place in the: (a) ovary (b) testis (c) oviduct…

A: Fertilization in humans refers to the fusion of human sperm and egg. This process occurs in the…

Q: 44 A full-term newborn has respiratory distress. Ultrasonography shows that the abdominal organs…

A: Abnormal embryonic development is when an embryo has genetic abnormalities and and its effects the…

Q: what does a "lactation" concept map look like with 10 words or phrases?

A: Introduction: Lactation refers to the production of milk by the mammary glands as well as the time…

Q: The opening between the two atria is found in a placental mammal fetus is called the:

A: The heart is the most vital organ of the body in biological organisms that works continuously from…

Q: S 138. A male newborn has albinism. The most likely cause of the lack of pigmentation in this…

A: The objective of the question is to identify the origin of the cells that are most likely…

Q: During this procedure, a sample of the fluid that surrounds the fetus is obtained by inserting a…

A: The ultrasound imaging technology creates images of the body tissue by using high-frequency sound…

Q: It is currently possible to save some premature babies born as early as week (a) 8, (b) 16, (c) 22,…

A: The development of the embryo and of the fetus during the gestation period is known as prenatal…

Q: Which of the following primary germ layers nervous tissue develops from? a ) yolk sac b) endoderm…

A: The life of a human being begins in the womb as an embryo and undergoes various developmental stages…

Q: Match the stage of gestation with the key developments that Occur during that time. Week 5-6 Week…

A: Gestation is the time period between conception and birth. During this time, the child grows and…

Q: hich structure is the outermost extra-embryonic membrane? A ) Placenta ‘ B ) Yolk sac D ) Chorion

A: An extraembryonic membrane is one among the membranes that assist within the development of the…

Q: The primary germ layer that forms the trunk muscles, heart, and skeleton is (a) ectoderm, (b)…

A: Organogenesis is the process of formation of different organs from the three germ layers, the…

Q: 7. Maternal effect: In Limnaea snail cats, R makes right coiled shells; r makes left coiled shells,…

A: In snail (Limnaea peragra) two types of shell coiling is found one is dextral or right handed…

Q: what does a "fetal development" concept map look like with 10 words or phrases?

A: Fetal development in shortest words.

Q: Which two extraembryonic structures form the placenta in humans? a) chorion and amnion b) amnion and…

A: Placenta is the structure formed between the fetus and the uterine lining of the maternal tissue.…

Q: APGAR

A: APGAR score is a test which is performed on babies at 4 to 5 minutes  after birth. It indicates how…

Q: What is the one defining characteristic that determines a mammal?

A: A) Well evolved creature, (class Mammalia), any individual from the gathering of vertebrate…

Q: ferent class

A: Introduction  Creatures having a place with class Mammalia are alluded to as warm blooded animals.…

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: Gestation of an animal can be as long as over two years (rhinoceros – 840 days) so, how does the…

A: Pregnancy begins with the fertilization of an egg and continues through to the birth of the…

Q: n your own words: Expound how the mass of inert yolk influences gastrulation in amphibians,…

A: In evolutionary biology, evolutionary developmental biology is considered a new norm. It developed…