WebSolution: The 2 male nuclei enter the embryo sac, one of the male gametes fuses with the egg to form a diploid zygote & the other male gamete fuses with a diploid secondary nucleus to form triploid primary endosperm nucleus (PEN). Therefore the two fusion is called double fertilization. 5. Draw labelled diagrams of. WebJan 25, 2024 · The characteristic of gymnosperms is given below: 1. Occurrence: Gymnosperms are found all around the planet. Most of them are present in the temperate and subarctic regions of the northern hemisphere. 2. Size: Gymnosperms include only tall, perennial trees. The smallest gymnosperm is Zamia pygmaea, and the tallest is …
Gymnosperm Definition, Description, Plants, …
WebDec 22, 2024 · Gymnosperms: The word “Gymnosperm” comes from the Greek words “gymnos”(naked) and “sperma”(seed), hence known as “Naked seeds.” Gymnosperms … WebJun 8, 2024 · Gymnosperm reproduction differs from that of angiosperms in several ways. In angiosperms, the female gametophyte in the ovule exists in an enclosed structure, the ovary; in gymnosperms, the female gametophyte is present on exposed bracts of the female cone and is not enclosed in an ovary. the hive michigan
Important Questions for Class 11 Biology - Plant-Kingdom
WebFeb 15, 2024 · What are gymnosperms Class 11? The gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed. The giant redwood tree Sequoia is one of the tallest tree species belongs to gymnosperms. ... gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule—unlike … WebFeb 28, 2024 · gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule —unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of … WebApr 7, 2024 · Complete answer: Mosses belong to the division Bryophyta. They are the small, non-vascular plants that are flowerless. They are autotrophic as they undergo photosynthesis. The life cycle of mosses shows alternation of generation. They consist of only a single set of haploid chromosomes. the hive menu orland ca