The group of organisms that exhibits a heterotrophic mode of nutrition is .......

What are the thread-like filaments of the mycelium called?

Assertion $(A)$: Sac fungi are not photosynthetic.
Reason $(R)$: They obtain nutrition through absorption.

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$A$. Fusion of protoplasms between gametes	$I$. Meiosis
$B$. Fusion of two nuclei	$II$. Plasmogamy
$C$. Generation of haploid spores	$III$. Karyogamy

Choose the correct answer from the options given below:

What type of sexual reproduction is observed in fungi?

At a stage of their life cycle,Ascomycetes fungi produce fruiting bodies known as ascocarps,which include apothecium,perithecium,and cleistothecium. How are these three types of fruiting bodies different from each other? Discuss the types of fruiting bodies formed by Ascomycetes fungi and differentiate them based on their structures.