True or false: Ascaris ova can survive long periods in dry environments.

The statement is true — Ascaris ova are capable of surviving long periods in dry environments. These eggs, produced by the parasitic roundworm Ascaris lumbricoides, are known for their resilience in various environmental conditions. They have a protective outer shell that allows them to endure desiccation and remain viable for several years in unfavorable conditions.

The ability of Ascaris ova to survive in dry environments is crucial for the transmission of the parasite. They can effectively contaminate soil and food, leading to human infection when ingested. Understanding the durability of these ova is essential in environmental health and sanitation practices, as it highlights the importance of proper hygiene, sanitation, and public health measures to prevent the spread of ascariasis.

Recognizing the survival capabilities of these ova helps reinforce the need for effective control measures in areas where this parasite is endemic, particularly in relation to soil management and water sanitation.