Q: How do germ cells avoid aging?
A: Introduction Ageing of cells can be attributed to several factors such as degradation of cellular…
Q: What is the function of the epididymis? How does it perform this function?
A: The male reproductive system is located outside the body. The male reproductive system is…
Q: ''As development progresses, individual cellsbecome more and more restricted in the range of cell…
A: Cells are the basic unit of life. They are often known as "building blocks of the body" and exhibit…
Q: Differentiated cells in a developing embryo derive from________.a. endothelium, mesothelium, and…
A: The zygote undergoes the process of cleavage, which is accompanied by cell divisions. Following the…
Q: What is the thick connective tissue layer that surrounds the parenchyma of the ovary called?
A: Ovary is the female reproductive organ.It has distinctively two regions: cortex which contains…
Q: From which germ layer doblood cells originate? Whatare other organs and tissuesmade from that germ…
A: A layer primarily formed from the early cells of the embryo formed during it development is known as…
Q: What is the differencebetween amnion and chorion?
A: Both amnion and chorion are present during a woman’s pregnancy and are part of the extra embryonic…
Q: What is the first cell of a new individual called?
A:
Q: What is the embryonic sac?Which are the cells that formthe embryonic sac? What aretheir ploidies?
A: The angiosperms are vascular plants that produce flowers and fruits, and they belong to the phylum…
Q: What is the typicalbiological function of theconnective tissues? How isthis function associated to…
A: Connective tissue has three main components: cells, fibers, and ground substance. Together the…
Q: A friend tells you that she doesn’t want tofeed her baby high-production milk because she is afraid…
A: The development of the body includes physical growth which refers to an increase in size. The growth…
Q: What are the regulatory mechanismsthat control the rearrangement ofcell–cell junctions in epithelia…
A: The cells are attached together by a specific adhesive glycoprotein. The epithelial cells are…
Q: Does the endodermis make sure that all substances pass or cross at least one membrane?
A: The endodermis is a single layer of cells present as the innermost layer of the cortex. It forms a…
Q: State the function of leydig cells.
A: Leydig cells or interstitial cells are present in the testicle. These cells have eosinophilic…
Q: What do yu mean by umbilical cord and state its function and location.
A: The process of fusion of male and female gamete is called fertilization. The diploid cell formed…
Q: Where does the formation of germ cells and sperm takes place?
A: Developmental biology is that the branch of biology that deals with the study the processes by that…
Q: What are the cells producedin the first stage of theembryonic developmentcalled?
A: The process in which the embryo forms and develops is known as embryonic development.
Q: Name the large fatty folds of skin that bound vulva.
A: The human female reproductive system contains two main parts Uterus and ovaries. These two parts…
Q: What is the cell divisionduring the first stage of theembryonic developmentcalled? How is this…
A: The process by which a parent cell divides into two identical daughter cells, is called Cell…
Q: What are germ line cells?
A: A cell is the basic smallest structural and functional unit of life. Living organisms made up of one…
Q: How does senescence occur?
A: In biology, senescence could be a method by that a cell ages and Completely stops dividing however…
Q: What are embryonic stem (ES) cells ?
A: Stem cells are cells that are undifferentiated or "blank." This ensures they have the potential to…
Q: ow are the testes and ovaries similar
A: The reproductive system(male and female) is a complex system with a number of interconnected…
Q: How do germ cells pass from one generation to the next?
A: Germ cells can transfer from one generation to another in the form of gamete. Germ cell produce…
Q: Consider the structures neighboring each of the progenitor domains within the somite. How might they…
A: In embryology, somite is a longitudinal blocklike series segment where the mesoderm, that is,…
Q: What is the differencebetween spermatids andsperm cells? What is the nameof the transformation…
A: Male reproductive organ involves testes, scrotum, spermatic ducts, and prostate glands. Testes…
Q: What the motile germ cell is called?
A: Gametogenesis is a process through which male and female gametes or germ cells (sperms and eggs) are…
Q: Why are the ectoderm and endoderm called the “germ” layer?
A: Gastrulation is the process of the embryonic development in which cell movements establish the…
Q: What is colostrum?
A: Infants have developed or immature immune system. Prevention of the infants from the microbes is…
Q: What is the connection between the non-neural ectoderm/epidermis and the dermamyotome?
A: Somites are building blocks of mesodermal tissue ,collectively constituting the vertebral plate.It…
Q: What tissue came from all 3 germ layers?
A: A germ layer is a group of cells in an embryo that interact with each other as the embryo develops…
Q: How does the malegamete penetrate the eggcell? How does the femalegamete protect itself from…
A: The process of fertilization is characterized by the fusion of the male and female gamete for the…
Q: What does it mean to say that tissues from two different individualsshow a close match?
A: A tissue typing test is like blood typing that utilizes particular antisera to recognize HLA (Human…
Q: What is the process in which the germ tissue layers form?
A: Germ layers are the three primary cell layers, formed in the earliest stages of embryonic…
Q: What generalizationscan you make aboutthe location ofmesoderm, whenpresent, during andafter…
A: Embryology is about the study of zygote and embryonic and organ development in plants and animals.…
Q: What happens to the second sperm nucleus, the one that does not fertilize the egg cell? What is the…
A: Sexual reproduction is a fusion of male and female gametes to produce offspring from the zygote.…
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: Which are the Two pigmented layers?
A: Eyes are the major source for the vision. It consists of several receptors to perceive the sight…
Q: Which are the specializedconductive tissues of theplants?
A: Transportation is the process that includes the movement of water and vital nutrients to all parts…
Q: What are germ cells?
A: In humans, mainly 2 types of cells are present; germ cells and somatic cells.
Q: why are the immature cells important
A: In biology, we believe that cells are the basic building blocks of the life. They are the smallest…
Q: What Ts dJ stematies?
A: The branch of science that studies living organisms is called biology. There is a great diversity of…
Q: Early in the development of skin, ectoderm becomes A. periderm and mesoderm becomes mesenchyme B.…
A: During the third week of embryonic development, three primary germ layers namely- ectoderm,…
Q: How does the sperm reach upto egg and how does it enter into the egg?
A: Fertilization is the process in which a sperm and egg are fused together in the uterine tube of the…
Q: What is the part of thefemale reproductive systemwhere fecundation occurs?
A: The biological process in which a new individual is produced from a parent is called reproduction.…
Q: Why would a person be allergic to strawberries when he eats thembut show a negative skin test to…
A: An allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance…
From which germ layer do
the epidermis and the nervous
system originate? What are
other organs and tissues made
from that germ layer?
Step by step
Solved in 2 steps
- Distinguish between exocrine and endocrine glands.How are multicellular exocrine glands classified onthe basis of their duct system? Their secretory portionshape?From which germ layer dothe liver and the pancreasoriginate? What are otherorgans and tissues made fromthat germ layer?Which gland secrete sebum?