Which process occurs between the zygote and the embryo stage

Q: Fusion of pronuclei occurs during ________.a. spermatogenesisb. ovulationc. fertilizationd.…

A: A pronucleus refers to the haploid nucleus of either the sperm or the egg, both present in the…

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: D А- -E B- C- OALL

A: Structural changes occurs in different stages of chick embryo.The 72 hour chick embryo shows the…

Q: Spermatogenesis usually occurs during the ___________ and continues in the _________ stage in some…

A: * spermatogenis is the process of formation of sperm from germ cells in semniferous tubules of…

Q: Milk production in the mammary glands is stimulated by a hormone from the pituitary gland…

A: Pituitary gland is a small pink coloured gland. Morphologically pituitary has three parts namely…

Q: The location of a cell during gastrulation plays a role in determining the cells fate in the…

A: The process of embryonic development during which the embryo having a single layer of cells called…

Q: Which of the following structures secretes the hormone that sustains the corpus luteum during the…

A: Corpus luteum is a temporary endocrine structure involved in ovulation and early pregnancy.  The…

Q: Fill in the blank:  _________________ on the inner lining of the uterine tube aid in moving a…

A: Embryo genesis is the formation of embryo and for this process to occur, ovary releases an…

Q: Prevents implantation of an embryo.

A: IntraUterine Devices prevents implantation of an embryo. It hinders implantation.

Q: Which statement below concerning oogenesis is FALSE? About half the oogonia complete mitosis between…

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: The _______ is an important structure for waste storage in birds and some mammals, but not in…

A: Extraembryonic membranes are the layers enclosing the embryo inside the uterus. There are four…

Q: Parthenogenesis isa. the process by which the germ layers form.b. involved in the formation of the…

A: Reproduction is the process by which living beings produce their own kind.

Q: Oogenesis produces_viable cell/s, and spermatogenesis produces_ viable cell/s О 4,2 О 1,4 O 4,4 O…

A: Spermatogenesis and oogenesis are the processes of formation of male and female gametes.…

Q: Differentiated Differentiated cells in a developing embryo derive from

A: The development of an embryo occurs in different layers. Every cell in the body have different…

Q: In humans, implantation in the uterus occurs at whichstage of embryonic development?a. zygoteb.…

A: An embryo is an unborn offspring in the steps of development. It is part of the life cycle. It is…

Q: 44- need help with following. please be specifiy about answer

A: Zygote is proudced by the fusion of male gamete (sperm) and female gamete (egg).

Q: A female egg cell has two outer membranes how does the egg cell prevent polyspermy? if polyspermy…

A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: With a line diagram trace the route of the sperm from the its point of production to the point in…

A: The fertilization is the process that involves the fusion of male gamete with the female gamete. The…

Q: When the embryo is implanted, what developmental stage this be? cleavage fetus blastula gastrula

A: Sexual reproduction in humans includes a fusion of sperms and eggs to form a zygote.

Q: In what part of the reproductive tract the following events take place? a) b) Ovulation Oogenesis c)…

A: The female reproductive system consists of a pair of ovaries along with a pair of oviduct, uterus,…

Q: _1. Chamber that houses the developing fetus 2. Canal that receives the penis during sexual…

A: Since you have asked multiple questions, we will answer only the first three questions for you. If…

Q: Where does fertilization take place in human body.

A: Humans are the multicellular complex organism and reproduce by sexual mode. This mode of…

Q: the box below. ovaries testes semina! vesicles cloaca ovarian tubes spermatheca oviducts ovarioles…

A: Introduction  Life starts from a single cell called Zygote. A zygote is formed by the fusion of the…

Q: Placenta is the structure formed : by fusion of germ layers by foetus only by the union of foetal…

A: As alecithal egg is yolk less, so embryo from these egg develops in the mother's uterus. So a…

Q: EGG SPERM EMBRYO Growth and development Continuity of life

A: Life processes such as growth and reproduction are shared by all living creatures. To establish if…

Q: By the end of gastrulation the [Select] * has surrounded the outside of the embryo, the [ Select ]…

A: Gastrulation refers to the process by which a gastrula is formed from a blastula. Grastrula is the…

Q: Poor embryonic development occurs because ____________________________.

A: After fertilization, a single celled diploid zygote is formed, which later develops into…

Q: In animal gamely he did, a single primary spermatocyte generates blank sperm, while single primary…

A: The meiosis is the cell division process by which a diploid (2n) mother cell divides its nucleus…

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: 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: 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: The embryonic membrane that is attached to the edge of the embryonic disk and surrounds the…

A: The placenta is an essential organ with different capacities, for example, endocrine, insusceptible,…

Q: The placenta is formed from ________.a. the embryo’s mesenchymal cellsb. the mother’s endometrium…

A: Placenta is defined as the organ that develops in the uterus of the women during pregnancy. The…

Q: This is the outermost layer that protects from water loss but allows for gas exchange: amnion…

A: An embryo is present at an early stage of the development of a multicellular organism. The formation…

Q: Name the other two membrane except primary membrane present outside the mature ovum.

A: The egg cell is the female gamete and upon fertilization with the sperm forms the zygote. It is…

Q: TWO differences between “zygotic embryos” and “parthenogenetic           embryos

A: Zygote is a diploid cell formed by fusion of male and female reproductive cell. By continue division…

Q: About the time of ovulation, the anterior pituitary gland releases a surge of _____ which initiates…

A: Answer. The general term female reproductive cycle encompasses the ovarian and uterine cycles, the…

Q: first and second division after the egg is ferlilized is mitosis or meiosis.

A: Fertilized egg is called zygote it undergo first cell division mitosis and develops as embryo…

Q: Fill in the blank:  _________________ fluid protects the embryo from jarred movements and provides a…

A: Reproduction is a property shown by living organism in which one organism (parent) gives rise to new…

Q: likely to happen if there are any errors during thae gastrulation stage

A: Embryo development The embryo develops in 4 major stages which are, fertilisation cleavage…

Q: Provide and label an image of an egg that is in its early cleavage, distinguish this stage from…

A: Embryonic development: a. It is the development that occurs when the embryo is formed and develops…

Q: An early stage embryo consisting of mutiple layers is a blastula O True False

A: In mammals, a blastula is an initial phase of embryonic development.

Q: The embryo below exhibits cleavage. radial bilateral spiral O modified

A: During developmental periods single cell zygote is transform into multicellular embryo by the…

Q: istinguish between gametogenesis and embryogenesis.

A: Gametes are the sex cells that are formed during sexual reproduction. The embryo is a developing…

Q: Which statement below concerning oogenesis is FALSE? About half the oogonia complete mitosis between…

A: Oogenesis refers to the process of the formation of the female gametes inside the women. The process…

Q: Draw the chromosomes in the zygote (cell after fertilization) egg cell fertilization sperm cell of

A: The fusion of feale gamete (egg cell) and male gamete (sperm) is termed as fertilization.

Q: ain The process of releasing of an egg from the ovary is called .

A: Ova (singular egg cell, from the Latin term egg cell, which means 'egg') is another name for egg…

Q: Events that occur from fertilization to the development of an embryo in animals

A: Answer: Introduction: Embryonic development in animals is also known as embryogenesis, is the growth…

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.