Explanation

Omicron is a variant of the SARS-CoV-2 virus, which causes Covid-19.

It was first reported in South Africa in November 2021 and spread rapidly worldwide.

Explanation

The bacteria that cause tuberculosis and leprosy are Mycobacterium tuberculosis and Mycobacterium leprae.

So the correct answer is d) None of these

Explanation

 Hepatitis A is primarily spread through contaminated food or water that has been in contact with infected feces, meaning it's transmitted through the fecal-oral route. 

Explanation

Rabies disease is caused by Virus.

Rabies means پاگل جانور یا پاگل کتے کے کاٹنے سے ہونے والی بیماری

Rabies is caused by the Rabies virus, which belongs to the Rhabdoviridae family.

It affects the central nervous system, leading to inflammation of the brain.

It is usually transmitted through animal bites.

Explanation

Glucose, also called dextrose, one of a group of carbohydrates known as simple sugars

Explanation

Insulin is produced by the pancreas, which is an organ located behind the stomach.

The pancreas contains clusters of cells called the Islets of Langerhans, specifically the beta cells within these islets, which are responsible for producing insulin.

Insulin plays a crucial role in regulating blood sugar levels by facilitating the uptake of glucose into cells for energy production or storage.

When blood sugar levels rise after a meal, the pancreas releases insulin to help lower blood sugar levels by promoting the uptake of glucose into cells.

Explanation

Rust diseases of wheat, the most common these days is called leaf or brown rust and is caused by P. triticina Eriks.

Explanation

Contagious diseases (such as the flu, colds, or strep throat)

A contagious disease is an infectious disease that is readily spread (that is, communicated) by the transmission of a pathogen through contact

Explanation

Diseases like chickenpox and polio are caused by viruses.

Chickenpox is caused by the varicella-zoster virus.

Polio is caused by the poliovirus.

Both of which are infectious viral diseases.

Explanation

• A cataract is a clouding of the lens in the eye that affects vision.
• It is a common age-related condition that can cause blurry vision, double vision, and sensitivity to light.
• Cataracts can be treated with surgery to remove the cloudy lens and replace it with an artificial lens.