निम्नलिखित में से कौन सा जीव बहुरूपी (विशिष्ट कोशिका भित्ति और निश्चित आकार के बिना) होता है?

Which of the following is CORRECT regarding the composition of viroids?

Why can yeast not produce alcoholic beverages with an alcohol content higher than ~13% naturally?

Which staining technique is used to differentiate bacteria into gram-positive and gram-negative based on their cell wall properties?