Plant Biology and Classification

Tissues which are made up of more than one type of cells and they work together as a unit are termed as complex tissues; it includes xylem and phloem. Bryophytes are a group of simple and primitive plants that show alteration of generation between two distinct phases namely a haploid gametophytic and a diploid sporophytic phase. The gametophyte is the haploid plant body which is either thalloid or a leafy shoot with stem-like and leaf-like structures and thread-like rhizoids. It lacks vascular tissues xylem and phloem. Zygote represents the first cell of the sporophytic phase which divides and develops into sporogonium. Sporogonium is differentiated into a foot, a seta and a capsule and serve to produce spores. Thus, all bryophytes lack complex tissues.
All gametophytes are the simple haploid stage that develops from spore and lacks vascular tissues, thus no complex tissues. Pteridophytes are the first vascular plants and possess vascular tissues xylem and phloem. The main plant body is sporophyte which is differentiated into true root, stem and leaves having a well differentiated vascular tissue.
The spermatophytes are the seed plants and include gymnosperms and angiosperms both of which have well developed vascular tissues (xylem and phloem).
Thus, the correct answer is option C.

In terrestrial plants, the endodermis is the central, innermost layer of cortex, made up of compact living cells surrounded by an outer ring of endodermal cells. It is the boundary between the cortex and the stele and contains the passage cells which allows some symplastic flow to the inside. Thus, the correct answer is option B.

• Fucus (rockweed) is a type of brown alga and it displays the diploid life history. 
• The zygote becomes the embryo and develops into the mature Fucus. 
• The receptacles are reproductive branches and so contain many cavities with external pores. These pores contain antheridia (male) and oogonia (female)
• The correct option is C.

Haplo-Diplontic life cycle observed in 8 in following plants. This life cycle present only in Bryophytes and pteridophytes. So, sphagum, polytrichum, marchantis and riccia belongs to Bryophyta and selaginella, pteris, dryopteris and polysiphonia belongs to pteridophyta. That's why they consists Haplo-Diplontic life cylcle. 

Bryophytes are known as amphibians of the plant kingdom because they require water for the movement of male gametes to the archegonia. Option B is wrong because sex organs in bryophytes are multicellular. Option C is wrong because the plant body is a thallus, not differentiated into true roots, stems, or leaves. Option D is wrong because Polytrichum is a moss, not a liverwort.

Statement (A) is wrong because the sporophyte in mosses is more elaborate than in liverworts. Statement (D) is wrong because Pinus is monoecious, meaning male and female cones are borne on the same tree. Statements (B) and (C) are correct.

In mosses, when antheridia and archegonia are on different branches of the same plant, the condition is monoecious (since both sexes are on one plant) and specifically paroicous (if they are on the same branch) or autoecious (if on different branches). Given the options, 'monoecious and paroicous' is the standard classification for this specific arrangement.

In bryophytes and pteridophytes and gymnosperms the male and female gametophytes to not have an independent free-living existence. They remain within the sporophyte. The gametophytes are quite large in Bryophytes as compared to other phyla like pteridophytes or angiosperms.

Herbs are small, non-woody plants that typically live for one or two growing seasons before completing their life cycle.

1. Nudiflora is a fungus of genus Cercospora.
2. Glumaceae is a term used by Bentham and Hooker that include grasses.
   
3. Epigyne is an order of plant which has an epigynous ovary.
4. Microspermae is an order of flowering plant refers to the size of a seed.

• Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. Poaceae includes the cereal grasses such as paddy, wheat, rice; bamboos and the grasses of natural grassland and cultivated lawns and pasture.
• The mustard plant is a plant species in the genera Brassica and Sinapis belonging to the family Brassicaceae.
  
• So, the correct answer is 'Mustard'

Poaceae or Gramineae is a large family of monocotyledonous flowering plants which are collectively referred to as grasses. It includes bamboos, cereals, grasses of natural grassland etc. It is an economically important plant family, providing cereals such as maize, wheat etc. Bamboo which is used as a building material belongs to the family Poaceae.

Poaceae, formerly called as Gramineae because it includes grasses. It is a large family of monocotyledonous flowering plants. Poaceae includes cereals, bamboos and grasses of natural grassland. It is an economically important family of plants, providing staple foods from domesticated cereal crops such as maize, wheat, barley etc. 

Wheat is a common crop that is facing many pests and diseases problem. Such as Barley Yellow Dwarf, Black Chaff, Crown and Root Rot, Fusarium Head Blight (Scab), Leaf Rust., Tan Spot, Wheat Soil-borne Mosaic, and Wheat Streak Mosaic. But gram, groundnut, and rice are also having pests and diseases but not in large numbers in comparison to wheat.

Thus the correct option is A. 

Jowar (Sorghum bicolor) belongs to the grass family, which is scientifically known as Poaceae (formerly Gramineae).