Flagellated spores called zoospores are found in chlamydomonas.

The tissue culture method of plant propagation, known as 'clonal propagation or micropropagation', utilises the culture of apical shoots, apical buds and meristems on suitable nutrient medium.

Formation of more than one embryo in a seed is known as polyembryony. It is commonly observed in citrus species.

Apospory is a process in which diploid embryo sac directly develops from an ordinary diploid saprophyte cell.

The female sex organ is called archegonia in bryophytes.

This process is called parthenocarpy.

Sporophylls are leaves that bear sporangia.

In ferns, sporangia are found on the abaxial surface.

The lower swollen portion of archegonia is known as venter.

The male gametes of lower plants are called spermatozoids.

The development of embryo from any cell of the gametophyte, other than the egg cell, is called apogamy.

Sporangia are present at adaxial surface of leaves in lycophytes.

A cluster of sporangia that has become fused in development is called a synangium. This structure is most prominent in Psilotum and Marattiaceae.

Sporophyte is diploid and gametophyte is haploid in alternation of generation.

A process of reproduction in which formation of embryo takes place without fertilisation (fusion of gametes) is called apomixis.