4. Look at the structures that the arrows point to below. What do these structures become once fertilization has taken place?

Q: 4. Some stages in the development of an individual are listed here. A = differentiation of cells…

A: When sperm fertilizes the ovum, then the formation of a zygote occurs. The zygote undergoes cleavage…

Q: What is a yolk? What is its role in fertilization and development?

A: Extraembryonic membrane: The blastoderm in different species like birds, mammals, and reptiles give…

Q: 7. Which of the following best explains the development of twins? a. In the case of both identical…

A: The gestation period varies for twins and a single baby by around 2 weeks. The single baby is…

Q: 8. Name the two indicated structures below the arrow, seen here in the PinuS ovule.

A: Plants are majorly divided into 2 types they are vascular plants and on vascular plants. Non…

Q: Why is it better to prevent teenage pregnancy? 2. What are the consequences of teenage pregnancy?

A: 1) Teenage mothers are more likely to receive below-average language and reading scores and have…

Q: 5. How is milk produced from the mammary glands?

A: Mammary gland function : Regulated by hormones

Q: Describe, from fertilization, the major pathways of normal male sex development. Include the stages…

A: Genetic sex  It is determined by the chromosome of the individual. If a person has a Y chromosome…

Q: _1. How many spermatids will be formed from 4 primary spermatocytes?

A: The germ cells that go through the meiosis process are called spermatocytes. Primary and secondary…

Q: II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic…

A: Answer is option d.) one secondary oocyte and one polar body.

Q: 1)Name the event above. 2)Name the only TWO germ layers that give rise to your feet.

A: Answer1- Fertilization is a set of complex events that combine the combination of two gamete to…

Q: Why do sea urchins have external fertilization? What are the adaptive advantages of external…

A: Fertilization, also referred to as syngamy, generative fertilization, and impregnation is the fusing…

Q: 4. During fertilization, what process allows steps 1-4 to occur, as shown here? Tail- Outer layers…

A: Fertilization is the process by which the male and female gametes fuse to form the zygote, which…

Q: 5. In the Diagram to the left for each of the abeled ayer. (ectoderm, endoderm or mesoderm) organs…

A: During the process of gastrulation three embryonic layers are formed by which different organs and…

Q: 5. The ovary starts to release progesterone. What does it do?

A: Luteinizing hormone after ovulation promotes the deposition of lipids in the remaining granulosa…

Q: 2. During which trimester do the following events occur? a) heart starts beating b) the body is…

A: Trimester is a group of 12 weeks this term used in case of pregnancy . Due to question answering…

Q: 3. a) Which of the following is not a teratogen: x-rays, folic acid, alcohol, mercury, HIV,…

A: These are questions about pregnancy and birth.

Q: 22. When glucose levels in the blood rise, your brain sends a signal to your pancreas. releases…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: 3) List the stages of development once the egg is fertilized. (When a woman and a man have sexual…

A: Human embryonic development, or human embryogenesis, refers to the development and formation of the…

Q: What is the role of the Arbacia fertilizin in the fertilization of an ovum? 4. What prevents…

A: Following are the summarization of events taking place in fertilization in sea urchin species- (1)…

Q: 3) Fill in the Venn Diagram comparing and contrasting Sexual and Asexual Reproduction. Have at least…

A: Reproduction is the process by which parents create new people or children. This procedure assures…

Q: What are the different mechanisms the egg employed to ensure that only one sperm cell will fertilize…

A: Polyspermy refers to fertilization of an egg cell by numerous sperms. It is avoided during…

Q: 2: No: 03: - In living the most certaih A. Gonads B. Hairs C. Distribution of subcutaneous fat D.…

A: Gonads are the male and female sex organs i.e. testis and ovaries respectively. These lie inside the…

Q: 3. Which is TRUE about asexual reproduction? A presence of zygote B. does not involve gametes C.…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: 5. Which of the following determines the sex of the offspring ? 1. The egg 2. Temperature 3. The…

A: Sex of an individual is either male or female. Male has XY genotype and female has XX genotype.

Q: 4. As the embryo develops, what do the amnion and the yolk sac become, respectively? a. A sac that…

A: The amnion is filled with the amniotic fluid due to which the amnion expand and provides protection…

Q: List the stages of development once the egg is fertilized

A: The cycle in which a life form creates from a solitary celled zygote to a multi-cell creature is…

Q: 11, The following is correct regarding embryonic development

A: Digestion is the process in which complex substances are broken down into simple substances.

Q: 1. What might be a disadvantage to temperature-dependent sex determination?

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…

Q: 2. Name the two ways fertilization can occur. a. Give an example animal that practices each. b.…

A: WHAT IS FERTILIZATION ? Fertilization is a process of combining of male gamete or sperm with female…

Q: 1. Which of the following layers protect the mammalian oocyte during ovulation? * a. cortical and…

A: Structure of mammalian Oocyte:  mature mammalian Oocytes have many layers before ovulation- Follicle…

Q: 5. Describe/draw the journey that the sperm cells go through to exit the O male body. Include the…

A: The process of sperm ejaculation during the intercourse involves series of steps that the sperms…

Q: 9. Some biologists contend that the term double fertilization is a misnomer and that the process…

A: Fertlizatiion is the process of the male gamete, sperm, fusing with the female gamete, the ovum,…

Q: 7) List 2 processes that the placenta takes over by the end of the first trimester in humans.

A: The placenta takes over the production of progesterone and human chorionic gonadotropin by the end…

Q: Iis the process whereby from each parent fuse to produce a new cell A. Gametogenesis, fertilization…

A: Hi, since there are multiple questions posted, only the first question is answered. Please post…

Q: 1. Why is neurulation important? 2. Compare and contrast neurulation and organogenesis.

A: The formation of a neural tube by the neural plate is known as neurulation.

Q: 1. How is the reproductive system designed to perform its functions? 2. How do the parts (each part)…

A: 1. The reproductive system is an assortment of organs and an organization of hormone creation in men…

Q: 1) Why does the babies blood never mix with the mothers? 2) If blood is never mixed, why do doctors…

A: Answer: After the process of fertilization within the mother's body, zygote differentiates and…

Q: 1. Spermatogenesis is the process in which an animal produces 2. Oogenesis is the process in which…

A: *NOTE: Kindly repost for other questions Dear Student as per the guidelines we are supposed to…

Q: What is the primary purpose of the fertilization membrane? a)Provide the growing embryo with food…

A: Sperm and egg (ova) are male and female gametes respectively. Fertilization is key process in sexual…

Q: 1. What is the sex of a pigeon and the crest of a pigeon a product of?

A: We are answering first question only. Fir rest of questions pls repost.

Q: 17. A researcher discovers a certain genetic disorder is appearing more often in males than in…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

Q: 6.The process where homologous chromosomes come together to form a tetrad is called A crossing over…

A: The answer is SYNAPSIS.

Q: 3. List the stages of development once the egg is fertilized.

A: Animal development is the process in which a fertilized egg undergoes cell division and cellular…

Q: 8. In the schematic of spermatogenesis below: name the processes A, B, C and D and m labeled cells.

A: Spermatogenesis is the development of sperm cells in male reproductive organs or particularly…

Q: What specifically will happen if multiple sperm were able to fertilize one egg during fertilization?

A: Introduction  A zygote is formed by the fusion of male gamete (Sperm) with the female gamete…

Q: Outline the events of oogenesis. Why is oogenesis a significant process for egg production

A: A small group of cells in the outer region of the cortex are developed into millions of primordial…

Q: 1. Shortly after implantation, tissue from the embryo normally grows into the wall of D с. C B d. A…

A: The given figure is that of female human reproductive system .