What are gemmules and conidia? Name one organism each in which these are formed.
Gemmules: These are internal buds. They consist of a small group of archaeocytes, enclosed by a protective coat. They are formed in freshwater sponges e.g. Spongilla. Conidia: They are formed in Penicillium. They are non-motile spores produced single or in the chain by a constriction at the tip of special hyphal branches called conidiophores