To develop into a seed C. To attract bees D. To support the flower 相关知识点: 试题来源: 解析 B。解析:在植物繁殖中,胚珠(ovule)的主要功能是发育成种子。花蜜(nectar)是由蜜腺产生的,与胚珠无关,A错误。吸引蜜蜂的主要是花瓣等结构,不是胚珠,C错误。胚珠没有支撑花朵的功能,D错误。反馈 收藏 ...
Ovule (Zoology) A small or immature ovum. 1 Ovum The mature female gamete of an animal; an egg. Ovule In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the integument, forming its outer layer, the nucel...
Ovary is the part of a flower that contains ovules and develops into a fruit; ovule is the part of the ovary that develops into a seed after fertilization.
What are the divisions between cells in many fungi called? What are three ways fungi are unique from plants? Explain what would happen if fungi were removed from an ecosystem. What is the role of the ovule in plants? What ecological role do algae play?
What does the seed viability equation describe? Why is the ovule so important for the development of a plant? Summarize advantages of seeds over spores. What is pollination and why is it important? What are the two most important elements required for germination to take place?
plant. The pistil is comprised of the stigma, style, ovary and ovule. The pollen travels down the style, which connects the stigma to the ovary of the plant. The ovary is the female part of the plant where the ovules begin to grow as a result of ...
What is the main function of protonema? The protonema, which grows directly from the germinating spore, is in most mosses an extensive, branched system of multicellular filaments that are rich in chlorophyll. This stageinitiates the accumulation of hormones that influence the further growth of newly...
The gametophyte is a stage in the plants life cycle that undergoes alternation of generations.The primary job of gametophyte is Gamete production.
Seeds are how the life of a plant begins. Examine the process of seed creation, how pollen is spread by pollinators to fertilize seeds, and how...
mammals, some marsupials, hammerhead fish, and other viviparous fish. Also, the viviparous Onychophora and other groups of animals transfer the material between the circulation systems of the fetus and mother through the placenta. In botanic placenta is a carpel section to which the ovule attaches...