a- Flowers b- carpel c- stamen d- seeds

In monocots stems vascular tissues are scattered, while in dicot they are arranged around the central axis

Flower.

Sphagnum belongs to bryophyte in which the male and female gametophyte is found to be free-living and independent while comparing it with other plants such as mustard, castor, and Pinus.

Food is stored as floridean starch in Rhodophyceae.

The Chlorophyceae contain chlorophyll a and b, zeaxanthin and lutein, together with a minor proportion of less typical carotenoids.

Isogamy : Isogamy refers to a form of sexual reproduction involving gametes of similar morphology, differing only in allele expression in one or more matingtype regions. Since both gametes look alike, they cannot be classified as "male" or "female." Instead, organisms undergoing isogamy are said to have different mating types, most commonly noted as "+" and "-" strains. Fertilization occurs when "+" and "-" gametes fuse to form a zygote.

Sporophylls : Sporophyll is a leaf that bears sporangia. Both microphylls and megaphylls can be sporophylls. In heterosporous plants, sporophylls bear either megasporangia (megasporophylls), or microsporangia (microsporophylls).

Green algae belong to class-Chlorophyceae, Eg, Chlorella and Spirogyra.

In gymnosperms, pollination is carried out by wind.Flowers in angiosperms have showy petals, nectaries, scent glands and several other devices to attract the insects, birds and other animals including man to help them to get pollinated.

microsporophyll of gymnosperms  It is broad and not distinguished into filament and anther.
microsporophyll of angiosperms It consists of a filament and a terminal anther.

i) Taxol Taxus
ii) Cabada balsam Abies balsamea
iii) Tannins Tsuga canadensis
iv) Copal Agathis australis

(i) Frond is a leaf-like the organ meant for performing photosynthesis process.
(ii) The cell wall in green algae is made up of cellulose (inner layer) and pectose (outer layer)

Azolla is a water fern, having a symbiotic association with nitrogen-fixing cyanobacterium Anabaena. It is introduced into paddy fields to function as biofertiliser.

Important features of mosses
(i) Erect, radially symmetrical leafy body produced from filamentous or thalloid juvenile stage is called protonema.
(ii) They bear multicellular branched rhizoids.
(iii) Sporophyte contains large amount of green tissue and is partially dependent upon the gametophyte