d describe Life-span Development

Q: Which form of reproduction can result from damage to the original animal? a. asexual b.…

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

Q: When do the oogonia undergo mitosis?a. before birthb. at pubertyc. at the beginning of each…

A: The female reproductive system is formed of the external and internal sex organs, which works in the…

Q: At which stage of embryogenesis, major patterns of the internal tissues of the embryo have been…

A: Embryogenesis It is defined as a process which occurs after the process of fertilization of an…

Q: Explain why the embryonic period is so important.

A: The embryonic stage of gestation is that the amount once implantation, throughout that all of the…

Q: List and briefly describe the four stages that are thoughtto have led to the formation of the first…

A: The origin of cells was the very first stage in the evolutionary theory of life on Earth. The cell…

Q: Why is knowing information about embryo development important

A: EMBRYO DEVELOPMENT:- It is the process of formation of the embryo, starts with the fusion of male…

Q: a How many parents are involved in sexual reproduction? b. Describe the genetics of the offspring in…

A: Sexual reproduction occurs through meiosis in which the gametes are produced by the male and female…

Q: Write in detail the process of organogenesis in vertebrates. Give one example and make diagram also.

A: In embryology, Organogenesis can be described as a series of processes that lead to converting the…

Q: design an experiment with a living creature to study and prove " Reciprocal inductive" from…

A: Embryonic induction can be defined as the processes in which one group of cells (or inducing tissue)…

Q: Explain why the recessive white eye gene in male fruit flies can disappear in one generation and…

A: White eye color is recessive. It is due to a mutation in a gene in the pigment pathway resulting in…

Q: Compare the male and female reproductive organs of reptiles and birds. Explain how are their…

A: Introduction Reptiles are cold-blooded animals that have vertebral columns at their backs. These…

Q: Eventually the amniotic cavity is surrounded by a double-layered membrane called the…

A: The amniotic cavity is the cavity which is the closed sac between the embryo and the amnion and…

Q: _______is the transmission of DNA to offspring. a. Reproduction c. Homeostasis b. Development d.…

A: DNA stands for the deoxyribonucleic acid. DNA is a type of nucleic acid that consists of the genetic…

Q: Explain the development of human embryo with diagrams.

A: to understand the progess of embryo development in humans, let's use the follwoing flowchart and…

Q: Contrast embryonic development with fetal development.

A: Embryology is the branch of biological sciences that studies the formation and development of…

Q: Explain the way in which the egg gets prepared for fertilization during oogenesis.

A: The process through which the male and female gametes combine to create the zygote is known as…

Q: What is the process called when all living organism receive physical features and internal features…

A: Heredity- The process by which the features of an organism are passed on from one generation to…

Q: Which primary germ layer gave rise to the cells that eventually became the central nervous system?…

A: Introduction  Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…

Q: Does sand temperature determines the sex of sea turtles? Discuss.

A: In some organisms the sex is determined before fertilization and in some organisms such as reptiles…

Q: Explain the relationship between transcription factors and genes that control development.

A: Transcription factors are proteins that aid in the conversion of DNA to RNA, also known as…

Q: Briefly summarize the main steps of animal development. What family of control genes plays a major…

A: Embryonic development, also known as "embryogenesis", is the process through which an embryo…

Q: ________________________is the period of development from fertilization to birth, whereas is the…

A: Gestation is considered as the period between conception ( or certification) and birth when the baby…

Q: ative essay about in vitro fertilization and designer babies

A: A pre-implantation genetic diagnostic (PGD) test can be used to check for the presence of a genetic…

Q: Define(a) Juvenile phase,(b) Reproductive phase,(c) Senescent phase.

A: In many animals, the life cycle of the organism may include many stages like the juvenile phase,…

Q: State the significance of mother’s milk to a new-born infant.

A: Mother's milk is produced by the special glands called as mammary glands and these are present in…

Q: According to this picture of embryos (early developmental stages), which two organisms are most…

A: Between all the organisms, some characteristics are similar and some characteristics are same. Based…

Q: How might nest temperature affect egg development in turtles? In crocodilians?

A: Amniotes are the animals that lay eggs wither in the outside environment or keep the eggs inside the…

Q: Embryonic stem cells come from

A: Answer: EMBRYONIC STEM CELLS are the pluripotent cell lines , these cells are characterized by their…

Q: what is the key aspect of development? a. growth b. lifespan approach c. progess d. evolution

A: Development is defined as the process of becoming bigger, stronger, better, etc. Development play…

Q: Explain the following terms: ectoderm, endoderm, mesoderm and stem.

A: Animal phylogeny is a rapidly changing field. The biologists mostly depend on the fossils to compare…

Q: People could observe the development of an embryo before they had the tools to see cells and parts…

A: Before we had the technology to visualise the development of embryos, the physical emergence of life…

Q: Give two ways nature uses to hide differences between X- and Y-sperm in mammals?

A: Most cells of the mammals contain both an X and a Y chromosome, but in the process of…

Q: Draw a picture of the cell that would form if the sperm cell fused with the egg cell. what is this…

A: Introduction Each testicle's seminiferous tubules produce sperm, which is produced by the male…

Q: redict what would happen if Ca2+ was injected into an unfertilized sea urchin egg.

A: Sea urchins are tiny, round echinoderms usually found in the depth of the ocean. The body has radial…

Q: Which term applies to egg development within the female with nourishment derived from a yolk? a.…

A: When the gametes of a male and a female fuse, it is called fertilization. A zygote results from this…

Q: xplain how does birth contr

A: The increase in the number of humans in the population represent the population growth .The…

Q: The process by which the structure labeled B is released from the structure labeled A is known as?…

A: The picture is showing the female reproductive system. It consists of ovary(A), Fallopian tube (C),…

Q: What part of an infant’s body is said to stay in an immature state until needed to produce more…

A: Human stem cells are one-of-a-kind cells that have the ability to differentiate into a wide range of…

Q: hat happens when the egg is not fertilized

A: Answer: FERTILIZATION : It is the process of fertilize the egg cell of female with sperm cell of…

Q: Starting with a fertilized egg (zygote), how many cells would be produced after 4 rounds of cell…

A: Meiosis is process of cell division in which cell divides twice itself to produce 4 daughter cells…

Q: If a girl started at the age of 14 and continued until the age of 49,calculate the number of eggs…

A: According to the menstrual cycle, A woman has the ability to view let only one egg per menstrual…

Q: Write 5 Example of post embryonic development

A: After the formation of the embryo, there is further growth, morphogenesis, and development to…