Concerning conditions necessary for the production of water molds, which statement is correct?
Correct answer: D. The optimum temperature for producing sporangia is around 21°C
- A. 50% relative humidity is essential for sporangia production
- B. Sporangia cannot be produced if relative humidity exceeds 70%
- C. Sporangia are typically produced in a fully saturated atmosphere at temperatures between 25°C - 37°C
- D. The optimum temperature for producing sporangia is around 21°C
- E. Sporangia never form in their preferred environmental conditions
Explanation
The correct answer is Option D: 'The optimum temperature for the production of sporangia is 21°C'. Water molds, or oomycetes, have specific environmental preferences for sporangia production, and 21°C is often suitable for some species. Option A is incorrect as 50% humidity is not a universal requirement. Option B is incorrect because high humidity usually favors sporangia production. Option C is not universally applicable, as the temperature range is too broad and not specific to all water molds. Option E is incorrect because sporangia do produce under optimal conditions specific to their environmental needs.
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