结果1 题目 25. Parts of a seed are shown in the diagram below. Which part of the seed provides it with food when it starts to become a seedling? 2A B厂D(1)A(2)B(3)C(4)D 相关知识点: 试题来源: 解析 2 反馈 收藏
The structure of a seed depends on whether it comes from a monocot or dicot plant. A monocot plant has a single seed leaf, which is typically thin and long — same shape as the adult leaf. The two seed leaves, or cotyledons, of a dicot plant are typically rounded and fat. Wheat, o...
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Look at the diagram of the seed. When seeds are planted in the soil they absorb water. As temperatures become warmer the cells of the embryo inside the seed begin to divide and the embryo grows. The embryo uses the stored food within the endosperm to grow and it eventually breaks through ...
种子(Seed) 包含胚(Embryo)和胚乳(Endosperm),是新一代植物的雏形。 III. 特殊结构 (Specialized Structures) 芽(Bud) 未发育的茎、叶或花,分为顶芽(Terminal Bud)和腋芽(Axillary Bud)。 气生根 (Aerial Root) 暴露在空气中的根,如榕树的支柱根、兰花...
Endosperm Definition, Function & Types Parts of a Seed: Lesson for Kids Seed Dissection Lesson Plan What is a Seed? - Lesson for Kids Parts of a Seed Lesson Plan Create an account to start this course today Used by over 30 million students worldwide Create an account Explore...
The pistil is the female reproductive part of a flower. It contains three main parts, the stigma, style, and ovary. The main function of the pistil is to produce a seed-bearing fruit. In order for the pistil to start the reproductive cycle, it must first undergo pollination. Pollination ...
Parts of a plant*Read the information below, then complete the fill-ins.读文章并完成填空。A"plant" is a type of(一种) living organism(有机体) that can make food on its own. Examples of plants include(包括) trees, grasses, ferns(蕨类), and flowers. Plants grow from a seed by absorb...
Topic 1 Parts of a plant植物 A plant has many parts. Most plants have roots, a stem, and leaves. Some plants have flowers. Each part helps the plant live and grow. Here are the parts of a plant.The roots always hold the plant in the soil. The roots take in water, too.We can ...
Within each disc flower is a central pistil topped by a two-lobed stigma, which is the part of the plant's female reproductive organs that receives the male pollen. The pistil extends down into the flower, ending in the flower's ovary, which will give rise to a seed. Th...