The correct match is: P - 3, Q - 2, R - 1

• Rhizopus is the species of a fungus. They reproduce asexually by the formation of the spores. The body of the fungus is composed of hyphae which develop the sporangium. The sporangium is a swollen structure at the tip of the filaments bearing the spores.
• In angiosperms, pollen is produced by the anthers of the stamens in flowers. In gymnosperms, it is formed in the microsporophylls of the microstrobili (male pollen cones). Pollen consists of one or more vegetative cells and a reproductive cell. A pollen grain itself is not the male gamete.
• In animals, egg cells are also known as ova (singular ovum, from the Latin word ovum meaning 'egg'). The term ovule in animals is used for the young ovum of an animal.

Klinefelter or XXY syndrome is a medical syndrome that can lead to gynecomastia or enlarged male breasts.

(gynecomastia is an enlargement of the male breast gland because of a hormonal imbalance)

Klinefelter syndrome is a genetic disorder wherein a human male is born with an extra X chromosome in the cells (due to nondisjunction of X chromosomes, and the egg carrying XX getting fertilised by a Y carrying sperm), resulting in a total of 47 chromosomes - XXY. The additional X chromosome leads to severe hormonal imbalance. The patient would have lesser amount of testosterone in the body and higher production of estrogen, resulting in sterility and poor development of male secondary sexual characters.

The male reproductive system in cockroaches consist of a pair of testes, a pair of vas deferens, ejaculatory duct, seminal vesicle, mushroom glands, and external genitalia. Testes are present at 4^th-6^th segments while the mushroom gland is present in 6^th -7^th segments. The female reproductive system consists of a pair of ovaries, a pair of oviducts, a common oviduct i.e., vagina, genital chamber and external genitalia. The genital chamber shows the opening of spermathecae which is a storehouse of sperms. Ovaries extend from 2^th - 6^th segments and show many tubules known as ovarioles. Spermathecae is in the 6^th segment.

Ciliated epithelium is present in the trachea.

Ciliated columnar epithelial cells are rectangular in shape and have between 200 to 300 hair-like protrusions, called cilia. Cells are interconnected via desmosomes and tight junctions. Ciliated columnar epithelial cells are found mainly in the tracheal and bronchial regions of the pulmonary system and also in the fallopian tubes of the female reproductive system. 

There are XX Chromosomes in females and XY Chromosomes in males.

The male chromosome decides the sex of the zygote which develops into young ones. When X-Chromosome inherited from the father it develops into a girl. When Y- Chromosome inherited from the father it develops into a boy. 

In tuberous roots, roots are swollen without any definite shape. Example: Sweet potato.

In fasciculated roots, several tubercular roots occur in a cluster at the base of the stem. Example: Dahlia.

In nodulose roots, the slender roots become suddenly swollen near the apex. Example: Mango.

Seymouria is the connecting link between amphibia and reptiles.

They lived about 280-270 million years ago – during the early Permian period.

It is believed that it could secrete salt like reptiles from its snout and could live without water for a longer duration.

That’s why Seymouria skin was more like a reptile and less like a true amphibian.

Aspergillus are used for the commercial production of citric acid.

Citric acid is the most important organic acid produced in tonnage and is extensively used in the food and pharmaceutical industries. It is produced mainly by submerged fermentation using Aspergillus niger or Candida sp. from different sources of carbohydrates, such as molasses and starch-based media.

Blood is the medium of transport for CO₂. Nearly 20-25 per cent of CO₂ is transport by RBC's whereas 70 per cent of it is carried as bicarbonate. About 7 per cent of CO₂ is carried in a dissolved state through plasma.

Sunken stomata are not directly visible to the leaf surface. They are found beneath the epidermis and beneath the leaves of plants. Xerophytes have sunken stomata to prevent water loss from the plant. They are often enclosed and partially covered by cuticles and are sunken within the leaf rather than on the surface. Therefore statement (A) is not true.

The stem of the aquatic plants is flexible because it helps the leaves to float. They bend with the flow of water so the plants do not get damaged by strong current. Therefore statement (B) is true.

Heterophylly is one of the methods of plasticity in which plant follow several pathways in response to the external environment. Plants like cotton, coriander, larkspur and buttercup have leaves in juvenile phase which are entirely different from the mature phase. Also, differ in either the plant is aquatic or terrestrial.  Therefore statement (C) is true.

Generally, hydrophytes have poorly developed root systems. This is because their other adaptations allow them to gain all the nutrients they need from their aquatic environment. Therefore statement (D) is true.

No waxy cuticle, or a very thin one, can be found on the leaves of hydrophytes . Due to the excess of water available to them, there is no need for a waxy cuticle, since reducing water loss is not a factor these plants have needed to adapt to. Therefore statement (E) is not true.