A fibrous root system (sometimes also called adventitious root system) is the opposite of a taproot system. It is usually formed by thin, moderately branching roots growing from the stem. A fibrous root system is universal in monocotyledonous plants and ferns. Grass, bamboo, banana, rice, wheat, and most of the plants with monocotyledons have fibrous root system.

Correct Option: A

A fibrous root system (sometimes also called adventitious root system) is the opposite of a taproot system. It is usually formed by thin, moderately branching roots growing from the stem. A fibrous root system is universal in monocotyledonous plants and ferns. Grass, bamboo, banana, rice, wheat, and most of the plants with monocotyledons have fibrous root system.

The ascent of sap in the xylem tissue of plants is the upward movement of water from the root to the crown. Xylem is a complex tissue consisting of living and non-living cells. The conducting cells in xylem are typically non-living and include, in various groups of plants, vessels members and tracheids.

Correct Option: D

The ascent of sap in the xylem tissue of plants is the upward movement of water from the root to the crown. Xylem is a complex tissue consisting of living and non-living cells. The conducting cells in xylem are typically non-living and include, in various groups of plants, vessels members and tracheids.

Pineapple is a perennial monocotyledonous plant having a terminal inflorescence and a terminal multiple fruit. The vegetative meristem produces leaves which becomes and inflorescence meristem. The Pineapple inflorescence contains many small flowers. Each flower has a prominent Bract. The Inflorescence Meristem which produces the Secondary Floral Meristem can revert to a Vegetative Meristem and can produce Leaves instead of Bracts. This forms the "crown" of the Pineapple and can be used to grow a new plant.

Correct Option: C

Pineapple is a perennial monocotyledonous plant having a terminal inflorescence and a terminal multiple fruit. The vegetative meristem produces leaves which becomes and inflorescence meristem. The Pineapple inflorescence contains many small flowers. Each flower has a prominent Bract. The Inflorescence Meristem which produces the Secondary Floral Meristem can revert to a Vegetative Meristem and can produce Leaves instead of Bracts. This forms the "crown" of the Pineapple and can be used to grow a new plant.

The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.

Correct Option: C

The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.

Fish as a community comprise the largest group on the earth as 72 percent of the worlds surface is covered with water. Fish are found from equatorial to polar climates; in salty or freshwater sources. It is assumed that life on the Earth began from fish.

Correct Option: C

Fish as a community comprise the largest group on the earth as 72 percent of the worlds surface is covered with water. Fish are found from equatorial to polar climates; in salty or freshwater sources. It is assumed that life on the Earth began from fish.