Which of these are functions of the spores or cysts formed by many protists?

• A. Protection against harsh environmental conditions
• B. Facilitating photosynthesis
• C. Increasing nutrient absorption
• D. Enhancing motility

Answer: (A)

Verified step by step guidance

1. Understand the role of spores and cysts in protists: Spores and cysts are specialized structures that many protists form to survive unfavorable conditions. They are typically resistant to environmental stresses such as desiccation, extreme temperatures, and lack of nutrients.
2. Identify the primary function of spores and cysts: The main function of these structures is protection against harsh environmental conditions. This allows the protists to endure periods when conditions are not suitable for active growth or reproduction.
3. Evaluate the other options: Facilitating photosynthesis, increasing nutrient absorption, and enhancing motility are not functions typically associated with spores or cysts. These processes are more related to the active, vegetative state of protists rather than their dormant forms.
4. Consider the biological context: In the life cycle of protists, spores and cysts are often formed during the dormant phase, when the organism is not actively engaging in processes like photosynthesis or nutrient absorption.
5. Conclude the analysis: Based on the understanding of spores and cysts, their primary function is to provide protection against harsh environmental conditions, ensuring the survival of the protist until favorable conditions return.