C. To protect the embryo inside. D. To help the seed float in the air. 相关知识点: 试题来源: 解析 C。解析:种子的种皮的作用是保护内部的胚。选项A,胚乳是为发育中的胚提供食物的,不是种皮,A错误。选项B,种皮不能直接参与光合作用,B错误。选项D,种皮没有帮助种子在空中漂浮的作用,D错误。
The seeds inside the fruit of a plant must be redistributed to make new plants, a process called seed dispersal. In nature this often happens when the fruit ripens and falls off the plant onto the ground. The flesh of the fruit rots and exposes the seed inside, which is fertilized...
The seeds inside the fruit of a plant must be redistributed to make new plants, a process called seed dispersal. In nature this often happens when the fruit ripens and falls off the plant onto the ground. The flesh of the fruit rots and exposes the seed inside, which is fertilized...
What happens to the corpus luteum if fertilization does not occur? Describe the pollination and seed dispersal strategies of angiosperms. The fertilized, mature ovule is a ___ A mature ovary is a ___. Describe the reproduction cycle of flowering plants. In flowering...
binary fission occurs in prokaryotes and mitosis happens in eukaryotes. B. binary fission does not have a step to duplicate the genetic information and mitosis does. C. binary fission creates daughter cell How does asexual reproduction by spores occur in plants? ...
What might be the oldest living thing on Earth lives on the side of a highway in Utah, and many people drive right through it without even noticing. It looks like a forest of aspen trees but is actually a single organism, one that originated from a single seed that managed to clone it...
Explain the process of fertilization in flower what happens to the (i) ovary and ovule after fertilisation ? View Solution Assertion : Pollination and fertilization in flowers produces fruits and seeds. Reason : After fertilization the ovary becomes fruit and ovule becomes seed. View Solution अ...
Reproduction, facilitating pollination and seed formation Protecting mature seeds and aiding in their dispersal 6 Part of Plant Reproductive structure of flowering plants Mature ovary of a flower 12 Structure Comprises petals, stamens (male), and pistils (female) Developed from the ovary, can be fl...
What about the rest of the nut and seed world, you wonder? Are those off limits? Not exactly. Nuts and seeds with higher net carb counts or a high proportion of carbs compared to fat and protein are best enjoyed in moderation, or avoided altogether if you tend to be sensitive to carbs...
In some plants, stems can photosynthesize, but this is usually a secondary function compared to leaves. 7 What happens if the stem of a plant is damaged? Damage to the stem can impair nutrient transport and stability, often seriously affecting the plant’s health. 5 What is the significance...