Question

Tallest Angiosperm is
(a)Quercus
(b)Eucalyptus
(c)Phoenix
(d)Sequoia

Answer 1

Hint: The needles that are present in this tree look like that of Juniper are like that of cedar. The needle screw in a narrow and a very short form. As they tend to grow in dry climatic conditions and warmer areas the upper leaves which have scale-like experience make them compatible with the surrounding atmosphere.

Complete answer:
Vascular plants that have stems roots and leaves are known as the angiosperms. They are different from that of the gymnosperms for example cycads in terms of their seeds which are found inside the flower. Angiosperms have both the sex organs at is the male and female. The male sex organ is known to be as stamen and the female sex organ is known to be as the pistil. Eucalyptusregnans, a group of species whose height may vary from medium-sized to extremely tall forest trees and are endemic to areas like Australia, Tasmania, and Victoria. The tallest angiosperm found in the world belongs to this group of species known as Eucalyptus regnans.

Additional Information: -Eucalyptus trees are the tallest plant that blooms on this planet.
-They are a type of quick-growing plants and attains a height of around 30 to approximately 180 feet.
-With 60% completion of their development they may attain the complete height as it can be seen in a fully developed eucalyptus tree.
-Eucalyptus trees are also beneficial for many medicinal purposes.
-They have an enclosed ovule on the embryo sac inside the ovary.
-Eucalyptus trees undergo double fertilization and the endosperm which is produced is triploid.
-Double fertilization is the process in which an egg cell fuses with a sperm, and after the fusion formation of zygote occurs. Another sperm simultaneously fuses with the polar nuclei which are present in the egg cell and the formation of triploid endosperm takes place.
-In eucalyptus trees, the endosperm which feeds the embryo is full of nutrients.
So, the correct option is,” Eucalyptus”.

Note: -The smallest angiosperm which is present on earth is of the plant Wolffia. They are also known to be Watermeal. These are aquatic.
-In an angiosperm after the termination of the process of fertilization formation of seeds that occur from the ovules and formation of fruits occur from the ovaries.