HORTICULTURE

Detailed explanation-1: -They are found in the colder regions and do not produce flowers. Examples: conifers, cycads, gnetophytes, and the species of gynkgophyta. The Giant Redwood Tree (Sequoia sempervirens) is also an example of a gymnosperm.

Detailed explanation-2: -(d) Sequoia sempervirens is a gymnosperm plant. it is a group of plants having thick, woody, branched stems. These plants also have some xeric adaptations which help them survive in adverse climatic conditions. The other examples are incorrect because pteridophytes is a primitive group, no tree is included in this.

Detailed explanation-3: -The giant redwood tree (Sequoia sempervirens) is a/an (a) angiosperm (b) free fern (c) pteridophyte (d) gymnosperm. Answer: (d) Sequoia sempervirens is a gymnspermic plant. It is a group of plants having thick, woody, branched stems.

Detailed explanation-4: –The Sequoia sempervirens are the gymnosperms since they do not possess flowers. They are present mainly in the mountains where precipitation from the approaching dampness off the sea is more prominent.

Detailed explanation-5: -Sequoia sempervirens (/səˈkwɔɪ. ə ˌsɛmpərˈvaɪrənz/) is the sole living species of the genus Sequoia in the cypress family Cupressaceae (formerly treated in Taxodiaceae). Common names include coast redwood, coastal redwood, and California redwood.