What is hypostome?

Q: What is myometrium?

A: The uterus is an inverted pear-shaped muscular pouch which is a part of female reproductive system.…

Q: What are the major features of embryonic development at various months of pregnancy?

A: Within twenty hours after the fertilization, the zygote starts to divide rapidly into many cells.…

Q: Explain block to polyspermy?

A: Polyspermy: - It is the process, where egg has been fertilized by so many sperms. In this condition…

Q: What causes the contraction of the uterus ?

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

Q: What is acromegaly?

A: There are certain diseases that can be caused due to imbalance in hormone concentrations. It is…

Q: Why is it important for the ductus arteriosus and foramen ovale to both close after birth?

A: The foramen ovale typically closes a half year to a year after the infant's introduction to the…

Q: What is internal fertilisastion?

A: Fertilization is the process by which male and female gametes are fused together, initiating the…

Q: What is an ectopic pregnancy?

A: Ectopic pregnancies exist in around one out of every 50 conceptions, as per the statistics of the…

Q: What is cesarean section?

A: Cesarean section is a surgical procedure used to deliver a baby through incisions in the abdomen and…

Q: What is normal gestation period(in days) of the developing foetus?

A: The developing zygote is called an embryo from the conception to the eighth week of the pregnancy.…

Q: Where is zygote formed?

A: Zygote is a diploid cell formed by fusion of male and female gametes. It then undergoes mitotic…

Q: How is polyspermy prevented?

A: Polyspermy is the process by which multiple sperms fertilize a single egg. This happens in only 1%…

Q: What is zygote?

A: Reproduction is an essential feature of all living organisms. It is the ability of an organism to…

Q: what is the innermost menix?

A: The controlling and communication center of the human body is known as the brain. The brain…

Q: What happens in postmenopause?

A: In the female reproductive system, the menstrual cycle is the regular natural change that occurs…

Q: What is emasculation?

A: It is a process that is essential in the process of artificial pollination.

Q: What is the fate of the foramen ovale? of the ductus arteriosus?

A: Human reproduction is known to be the form of sexual reproduction that results in human…

Q: Where does fertilization normally occur?

A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual…

Q: What is the role of the HCG hormone in pregnancy?

A: HCG or Human Chorionic Gonadotropin hormone is one of the crucial hormones in pregnancy. Here we…

Q: What major changes happen during the fetal stage ofdevelopment?

A: Fetal stage extends from the end of the eighth week and continues until the birth.

Q: What is emasculation? When is it done and why?

A: Plant hybridization can be defined as the process in which two genetically different species are…

Q: What is puberty?

A: The postnatal period begins immediately after the birth and continues until maturity, the state,…

Q: What are the possible complications of epidural anesthesia on delivery and labor?

A: Painless delivery is the fad of today's age wherein epidural blocks are being used to desensitize…

Q: how is a childs wolrd broadend during the preoperational stage?

A: Piaget theory states the four different stages of the development of children and that depicts…

Q: How is a Merozygote formed?

A: Conjugation is a process in which a bacterium transfers its genetic material to another cell by…

Q: Why is there the need for two separate mechanisms to complete the neural tube?

A: Neurulation is the process of the formation of a neural tube. This occurs by transforming the neural…

Q: what is the physiological development in toddlers period?

A: Childs at the age of 2 - 4 years are called toddlers. The physical growth and development is…

Q: What is the acrosome?

A: A spermatozoon is motile sperm cells or moving from of the haploid cells that is the male gamete. A…

Q: What is the clinical perineum?

A: The pelvic cavity contains many major organs and especially it forms the major reproductive organs.…

Q: how long is birth?

A: Labor is split into three different phases. The first step of labor involves full dilation of the…

Q: What are the Vital Sign ranges of the normal newborn?

A: KEY WORDS :- Newborn - When baby is around 2 or 3 days old.

Q: How does parthenogenesis occur?

A: A reproduction is a biological process, the formation of offspring for their parents. The…

Q: What is dominant epistasis?

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: how can brain cancer affect birth?  How does brain cancer affect fetal development?

A: Introduction:-  Brain cancer in a female are very rare to occur during pregnancy. These mostly occur…

Q: What is the histologic structure of the cervix?

A: In females, the cervix is the part of the reproductive system and is present at the uterus base. It…

Q: What is the first appearance of embryonic callus?

A: Callus is defined as an unorganized tissue mass growing on solid substrate. Callus forms naturally…

Q: When does implantation of the blastocyst usually take place?

A: During fertilization, a sperm comes in contact with the zona pellucida layer of the ovum and induces…

Q: The lumbar region is ____ to the gluteal region?

A: The body surface is divided into specific anatomical regions. The lumbar or lower back region is the…

Q: What are the benefits of the Amniocentesis procedure?

A: In an amniocentesis procedure, a sample of amniotic fluid from the uterus is removed. With the use…

Q: What is the developmental fate of the inner cell mass of the blastocyst?

A: A diploid zygote is formed by the union of a haploid egg cell and a haploid sperm cell. The zygote…

Q: What is the endocrinefunction of the placenta?

A: Placenta is the organ that develops in the uterus during pregnancy. This structure is essential for…

Q: What is the normoblasts??

A: Normoblast is a nucleated normal cell arising in red marrow as a phase and stage in the improvement…

Q: What is a lacteal?

A: Lacteal is defined as either consist of milk or resembles a milky appearance. In anatomical terms,…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.