Zoology MCQs for NEET — Practice Questions with Answers

Salmonella is a type of bacteria that is known to cause typhoid fever. It is transmitted through contaminated food and water. Therefore, Salmonella is related to typhoid.

Immunoglobulin E (IgE) is a type of antibody that plays a crucial role in mediating allergic responses. It binds to allergens and triggers the release of histamines from mast cells and basophils, leading to allergy symptoms.

The incubation period for Plasmodium falciparum, which causes the most severe form of malaria, typically ranges from 9-14 days. Therefore, the closest option is 12 days.

In females, the mammary glands are well developed, which is a characteristic feature distinguishing females from males.

The testes are situated in the scrotal sac, an external pouch of skin and muscle that helps to regulate the temperature of the testes, ensuring they remain slightly cooler than the body's core temperature. This is crucial for the proper production of sperm.

Testosterone is the primary hormone released by the testes. It plays a crucial role in the development of male reproductive tissues, the promotion of secondary sexual characteristics, and the production of sperm.

The male reproductive system includes several glands, such as the seminal vesicle, the prostate gland, and the bulbourethral gland. Each of these glands contributes to the production and secretion of seminal fluid, which helps to nourish and transport sperm.

Leydig's cells, also known as interstitial cells, are found in the interstitial space between the seminiferous tubules in the testis. These cells are responsible for the production of testosterone, which is essential for the development of male secondary sexual characteristics and spermatogenesis.

The epididymis serves several important functions. It acts as a temporary storage site for sperm, allows the immature sperm to complete their maturation process, and enables them to gain motility. Therefore, the correct answer is 'All of these'.