Which of the following correctly represents the type of life cycle patterns from the options given?

Based on the following characteristics of life cycles identify and arrange the plants respectively.

In kingdom Plantae, alternation of generation is not associated with

Which of the following features correctly belong to the concerned plant group?

(a) Presence of heterospory also.

(b) Sporophyte is not independent, but it is attached to photosynthetic gametophyte.

(c) Endosperm is haploid and develops before fertilization.

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$