Each egg cell develops in its own fluidfilled space called a/an _____.

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: Normally after how many days an ovary release an egg.

A: Every 28 days, an ovary release one mature egg that lives for 12 to 24 hours.

Q: In the fallopian tube, an egg cell is moved toward the uterus by: simple columnar epithelium…

A: The uterus is connected to the ovaries through two long, narrow tubes. The ovaries send eggs to 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: ___________________ fluid protects the embryo from jarred movements and provides a watery…

A: The embryo inside the womb of the mother grows in a sac like bag called the amniotic sac.  It allows…

Q: Prevents implantation of an embryo.

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

Q: The bladder like structure in the amniotic egg

A: The allantois (plural allantoides or allantoises) is an empty sac-like design loaded up with clear…

Q: If the egg is fertilized it will develop in the

A: Fertilization is the process of a sperm fusing with an ovum. When the egg moves down the Fallopian…

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: 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: The fusion of a sperm and an egg cell initally produces which of thefollowing?a. blastocyst d.…

A: There are 2 types of cell namely somatic cells and germ cells. Germ cells are aimed to produce…

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: In a reptile egg, the extraembryonic membrane thatencloses the embryo in a watery environment is…

A: Answer is b.) amnion.

Q: What happens to boys and girls at puberty

A: Puberty is the duration of life when boy or girl becomes sexually mature.It generally occurs between…

Q: An oocyte lives for only 24 hours after ovulation if it is not fertilized. The trip down the uterine…

A: The Fallopian tube serve as the site for fertilization. Fertilization specifically occur in the…

Q: Which organs are responsible for producing fluid to give sperm nourishment and motility

A: Sperms are produced in the testes of males. The male reproductive system produces sperm that are…

Q: Which of the following extra-embyonic membranes become the embryonic portion of the structure…

A:

Q: Which of these means that the yolk distribution to only one side of the egg? O Centrolecithal…

A: The process of the formation of new organisms from the existing organisms is called reproduction. It…

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: Rarely, two sperm may penetrate a secondary oocyte. Do youthink this fertilized cell will survive…

A: Fusion of only one sperm takes place with the egg.

Q: Most neural tissue is derived from ectoderm. This statement iş (T/F) .

A: Ectoderm is one of the germ layers which is formed during the gastrulation process in the zygote. It…

Q: If the egg is NOT fertilized, the lining of the uterus will shed.  This is called?

A: In the event that the egg is fertilised by a sperm cell as it goes down the fallopian tube,…

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: Illustrate an egg in early cleavage, distinguish this stage from thise that follow (2,4,8 cell…

A: In developmental biology, several stages are there which determines the development of the fetus…

Q: From which of the following is the embryo developed? Trophoblasts Inner cell mass Blastocoelen…

A: Embryo is formed from the  zygote and zygote is formed by the union of the male and female gametes.…

Q: A sperm has just fertilized a human egg in the fallopian tube. Trace the events that the fertilized…

A: Fertilization is the process that involves the union of sperm and female ovum gametes to produce a…

Q: Place the number corresponding to the correct germ layer in the blank.   ____ Mesoderm ____…

A: During gastrulation, the hollow sphere of balls called blastula develops into a gastrula.…

Q: Based on what you know about the goal of gastrulation, suggests the direct developmental consequence…

A: Embryonic development is the process of development of an embryo.  Gastrulation is a process that…

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: 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: Which of the following statements is FALSE? The primary spermatocytes undergo mitosis. Secondary…

A: The life process of the formation of a new organism from existing organisms is called reproduction.…

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: How many sperm and egg cells will be produced if there are 20 spermatogonia and 10 oogonia that…

A: Gametogenesis is a biological process that involves the division and development of diploid or…

Q: the embryo development and cell layers

A: The embryo is developed from the zygote by the mitotic divisions. The zygote is formed after the…

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: Sperm are the only human cell that posses what for movement

A: The male reproductive cell or gamete is called as the SPERM.  Sperms have special characteristic…

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 fertilized egg enters a 2-week period of cell division. During this period, the fertilized egg…

A: Reproduction is the process by which an organism creates more of its own progeny. Reproduction is…

Q: The outermost (most superficial) extra embryonic membrane is____ a ) Allantois b ) Amnion d )…

A: Extraembryonic membrane are the membrane which is formed around the growing embryo and is involved…

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: Name the substance present in the sperm acrosome & which help in sperms entry into egg.

A: Reproduction is the process that ensures the continuity of species on earth. It is the main feature…

Q: 1. U the ilustaton to dentfy the organs of the female reproductve nystem. 2 Tel the function of each…

A: Female reproductive system It constitutes structures of internal and external sex organs which play…

Q: After the eighth week of development an embryos is referred to as what?

A: After the 8th week of development, the embryo is referred to as "fetus"

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…