Answer:
The correct answer will be option-B.
Explanation:
Sertoli cells are the large somatic cells present in the testis which helps in the formation of spermatozoa. The Sertoli cells create a suitable environment for the production and maturation of the sperms as they produce certain molecules which nourishes the sperms.
The Sertoli cells act as a barrier between the testis and blood and secrete enzymes like inhibin. They eliminate the apoptotic germ cells and also produce seminiferous fluid to nourish the sperm. They do not play any role in primary spermatocytes.
Thus, Option-B is the correct answer.
Answer:
- <u>Similarities And Differences:</u>
If a topic, law or scientific research shares the same origin of study, similar to another topic or term, then they will be compared and further analyzed by the team of scientists and research workers in order to have some conclusions and results.
Explanation:
- As there are many scientific research and analyses which is been carried out in order to analyze the different elements in the process of comparison between any two subjects and terms.
- <em>There are various subjects and topics of research work. Many of the scientific research work are in parallel to each other as they are somehow compared by other scientists and research workers.</em>
Answer:
The crust is thinner and less dense than the mantle.
Streams that flow beneath melting glaciers leave long ridges of layered sediments, known as Esker. Eskers are formed within ice-walled tunnels by streams which flowed within and under glaciers. They tended to form around the time of the glacial maximum when the glacier was slow and sluggish and after the retaining ice walls melted away, stream deposits remained as long winding ridges.
Answer:
A. Producer Primary comsumer Secondary consumer
