Answer:
The correct answer is option b. "It is maintained through beliefs that are widely shared in a society".
Explanation:
Social stratification is a people's differentiation according to its socioeconomic strata, directly affected by its wealth and social status. One of the principles of social stratification is that it is maintained through beliefs that are widely shared in a society. The existence of the different strata is maintained by people's believing in them, as people is rise with the idea of its existence and this idea is passed from generation to generation.
Antonie van Leeuwenhoek viewed moving objects from pond water under his microscope and named them “animalcules.
Antonie van Leeuwenhoek was a scientist and the first microscopist to observe protozoa and bacteria. He created microscopes that possess a single high-quality lens of small focal length and isolated tiny animalcules (microbes) from various sources such as pond water, well water and rain water. Through his experiments, he also calculated the sizes of the animalcules.
Answer:
Characterization of exosomes has become a topic of interest in medical research and molecular biology because it can provide very valuable information for early detection, disease monitoring and development of effective treatments against cancer and autoimmune diseases. Exosomes are known as one type of secreted membrane vesicles that are responsible for intercellular communication by providing means for intercellular exchange of proteins, lipids, mRNA, miRNA and DNA, contributing to intercellular communication in relevant biological processes, playing an important role in the development of several diseases, and specifically, modulating cancer microenvironment and the immune response. Exosomes and its contents also have emerged as non‐invasive biomarkers for various diseases. Exosomes composition and quantity may be directly related to the pathological state of the patient, so the characterization of exosome could be of great relevance for diagnosis.
Explanation:
https://www.creative-biostructure.com/exosome-analysis-and-characterization-651.htm
Answer:
Egg graders determine quality based on the egg's: shell, white, yolk, and air cell. Here's how to tell a high quality egg from a low one.
Explanation:
