The placenta is formed from ________.a. the embryo’s mesenchymal cellsb. the mother’s endometrium onlyc. the mother’s endometrium and the embryo’schorionic membraned. the mother’s endometrium and the embryo’sumbilical cord

Q: If an embryo splits at the two-cell stage, each of the resulting identical twins will have its own…

A: Identical twins:  The splitting up of the embryos into two at the two-cell stage leads to the…

Q: The narrowest part of the uterus is:- a. the fundus. b. the infundibulum. c. the body. d. the…

A: Answer is e.)  the cervix.

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: After ovulation, the secondary oocyte enters the (a) oviduct (b) corpus luteum (c) cervix (d) ovary…

A: The main reproductive organ in females is the ovaries. These are almond-like organs that produce the…

Q: Choose the best of the following The fusion of a sperm and an egg cell initally produces which of…

A: Process of reproduction in human beings is very complex and interesting. It includes various…

Q: Cleavage produces daughter cells called ________.a. trophoblastsb. blastocystsc. morulaed.…

A: Cleavage is described as the procedure of cell division in early embryo to generate a cluster of…

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: The placenta is formed from the embryo and the of the of the mother. O umbilical cord, oviduct O…

A: Reproduction is an important physiological process of all the living organisms. to increase their…

Q: Women sometimes develop benign tumors calledovarian teratomas or dermoid cysts in their ovaries.Such…

A: In the ovaries of women, the ovarian teratomas or dermoid cysts develop as benign tumors. These…

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: the process of embedding of -7 fertilized ovum in the endometrium of the uterus is Fertilization O…

A: The uterus is a hollow muscular organ located in the female pelvis between the bladder and rectum.

Q: Fill in the blank:  The myometrium is largely composed of _______________________ tissue.

A: The female reproductive system is comprised of the external and internal sex organs, which play a…

Q: deggs are made here A. prostate gland where the embryo implants to grow a placenta near the many…

A: Match the following belongs to the Human reproductive system.

Q: What could be the reason why a woman only gets her period after puberty begins? A) Before puberty,…

A: The lining of the uterus thickens and prepares an egg for fertilization. If the egg is not…

Q: GnRH can be used to treat some females who want to have childrenbut have not been able to get…

A: The female reproductive system of humans is immature at birth and develops with time. The parts of…

Q: Which of these produces blood cells and germ cells at the early stages of fetal development? O…

A: The yolk sac is responsible for producing blood cells and germ cells during the early stages of…

Q: Why are the cell movements (i.e. invagination, involution, epiboly) important in proper development…

A: The study of embryo development is known as embryology. This covers the transformation of a…

Q: At puberty, the testes contain a finite number of cells and producean enormous number of sperm cells…

A: Spermatogenesis could be a joint sequence of events throughout maturation of spermatogonia into…

Q: nderstood, scientists do know that high levels of the hormone estrogen lead to the formation of r…

A: Oxytocin is a peptide hormone that is produced by the hypothalamus and stored in the posterior…

Q: Although the male ejaculate contains hundreds ofmillions of sperm, ________.a. most do not reach the…

A: Reproduction is the process by which the organisms propagate their species. Sexual reproduction and…

Q: Sperm cells originally come from a diploid cell called a…

A: Reproduction (or multiplication or rearing) is the natural interaction by which new individual…

Q: In human development, an embryo is most sensitive to chemicals, radiation, and pathogens during the…

A: Need to find the best option from the given four options related to embryo.

Q: Alkaline secretion containing fructose   A. Prostate gland   B. Mesoderm   C. The inner cell…

A: The reproductive system of males contain accessory organs like bulbourethral gland, prostate gland,…

Q: During oogenesis the cell that is fertilized by a sperm to become an egg is:    A primary…

A: Oogenesis is the process of 'oocyte development 'in females. The resulting cell is called gamete…

Q: The main functions of the placenta include digestion, respiration, and excretion. O True O False

A: The zygote formed after fertilization develops into a baby within the uterus for a viviparous…

Q: Then the makes that keeps the endometrium in the uterus. A. pituitary gland; HCG B. ovary; estrogen…

A: Hormones are the chemical molecules which acts as a chemical messenger for different body tissues…

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: mother and given embryo's (through placenta). O d. It decreases surfa tension forces of t

A: A metabolically active assembly of phospholipids and surfactant-specific proteins that is essential…

Q: On average, girls begin puberty at about the ageof______________ , boys at about the age of…

A: Girls' breasts normally develop earliest as they approach puberty.Breast buds can be exceedingly…

Q: What would happen if the placenta was not able to fulfill its endocrine function in a pregnant…

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

Q: Birth control pills commonly provide excess progesterone that serves to inhibit (suppress) the…

A: The major hormones involved in the Menstrual Cycle are: FSH: This hormone is responsible for the…

Q: . A placenta vera is formed if  a.The placenta is removed during birth. b. The maternal blood bathes…

A: The placenta develops inside your uterus during pregnancy, providing oxygen and nutrition to and…

Q: These structures (missing in human females) is present in female pigs because pigs give birth to…

A: Anatomy can be defined as a branch of biology that is associated with the study of the organism’s…

Q: 10. The location of secondary oocyte before the follicle rupture а. Ovary b. Fallopian tube C.…

A: Q. The Location of secondary oocyte before the follicle rupture Answer. Before the follicle rupture…

Q: Which of these has the largest amount of DNA?

A: Spermatogenesis is the formation of spermatid (n) from spermatogonia(2n).   Spermatogonia(2n) - 2…

Q: What are the female gonads called?a. oocytesb. ovac. oviductsd. ovaries

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

Q: at would nappen il stem celis divided ike spermatogonia. O There is a huge stock of stem cells in…

A: Stem cells are kind of totipotent cells which are able to differentiate into any cells whenever…

Q: 1)It regular of the male sex organ in the embryo 2)it control the development of endometrium during…

A: Hormones are the chemical molecules which acts as a chemical messenger for different body tissues…

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: Without SRY expression, an embryo will develop ________.a. male reproductive structuresb. female…

A: Developmental biology deals with the study of the organisms at their early stages of development.…

Q: thich does NOT leli somelhing A. It produces spem cells. C. It deposits spem to the vagina. hich is…

A: Correct answers 1) (C) it deposit sperm to the vagina 2) (B) epididymis 3) (B) prostate gland 4) (D)…

Q: atch each structure with its function Epididymis A. Structures that make seminal fluid B. Tubes…

A: The epididymis is a lengthy, curled canal that delivers sperm from the testes and preserves it. On…

Q: How does recent legislation on abortion (i.e, Texas making all abortions illegal once a fetal…

A: A Texas regulation forbidding most fetus removals after around a month and a half of pregnancy came…