The main function of epithelial tissue is:

(C) Defense

Explanation:

Epithelial tissue serves as a protective covering for the body and its organs. It acts as a barrier that helps prevent the entry of pathogens and other harmful substances. Epithelial cells are tightly packed and form continuous sheets, providing a protective layer on the body surfaces, both internal and external. This protective function is essential for defending the body against infections and maintaining its integrity. Therefore, option (C) Defense is the correct answer.

The substance that causes the clotting of blood is:

(A) Thrombin

Thrombin is an enzyme that plays a crucial role in the blood clotting process. It is responsible for converting fibrinogen, a soluble plasma protein, into insoluble fibrin threads. These fibrin threads form a mesh that helps in the clotting of blood, particularly at the site of injury or wound. Therefore, option (A) Thrombin is the correct answer.

Penicillin is obtained from fungi, specifically a group of molds known as Penicillium. The discovery of penicillin, one of the first widely used antibiotics, is credited to Sir Alexander Fleming in 1928. Fleming observed that the mold Penicillium notatum produced a substance that could inhibit the growth of bacteria. This substance was later named penicillin and became a groundbreaking antibiotic in the field of medicine, revolutionizing the treatment of bacterial infections. Therefore, the correct answer is (B) Fungus.

Fructose is often regarded as the sweetest sugar among the options provided. It is a natural sugar found in fruits, honey, and some vegetables. Fructose is sweeter than glucose, sucrose (which is a combination of glucose and fructose), and maltose. Due to its high sweetness level, fructose is commonly used as a sweetener in various food products and beverages.

LUCKNOW: Mathematician Anand Kumar was Monday conferred with the Swami Brahmanand Award 2021 for his contribution in the field of education through his 'Super 30' initiative, which prepares underprivileged students for the IIT entrance exam.

The 2021 US Open was the 141st edition of tennis' US Open and the fourth and final Grand Slam event of the year. It was held on outdoor hard courts at the USTA Billie Jean King National Tennis Center in Flushing Meadows, New York City. Daniil Medvedev won the men's singles title.

1. The Muslim commander who died fighting on behalf of the Marathas in the Third Battle of Panipat was Ibrahim Gardi.

2. The Third Battle of Panipat took place on 14 January 1761, about 60 miles (95.5 km) north of Delhi, between the Northern Expeditionary Force of the Maratha Empire and a coalition of two Indian Muslims, led by King Ahmad Shah Durrani of Afghanistan.

3. The decline of the Mughal Empire following the Mughal–Maratha War (1680–1707) led to rapid territorial gains for the Maratha Empire.

There are three protective layers around our brain and spinal cord, called meninges. These layers are named in the order from outside to inside