<p><strong>Step-by-Step Text Solution:</strong></p><p>1. <strong>Definition of Flowers</strong>: Flowers are considered the sexual organs of plants. They contain reproductive structures that facilitate reproduction.</p><p>2. <strong>Parts of a Flower</st
Your friend is allergic to pollen. What should you remind him? A. Play in the flower garden every day B. Wear a mask when going out C. Smell the flowers closely D. Touch the flowers often 相关知识点: 试题来源: 解析 B。解析:对花粉过敏出去的时候应该戴口罩,A选项每天在花园里玩、C选项...
Many plants reproduce through the use of flowers. Generally, a flower contains two primary parts: a pistil and a stamen. The pistil contains an ovary and ovule, which develops into a seed when fertilized. The stamen is made up of a filament and a pollen-coated anther. When pollinators, ...
Macairea radula (Melastomataceae) has two stamen sets, poricidal anthers, pollen as the main floral resource and flowers visited by vibrating bees, a set of traits related to heteranthery. However, tristyly, which also predicts stamens differences within the same flower, has been proposed as...
In a series of bizarre occurrences, his body was preserved in the ice before being discovered some 25 years ago in the Dolomites. Scientists have learned some pretty amazing things about Otzi—his interesting tattoos, his unusual anatomical variants, even a bit about his diet of pollen and ...
根据第二段和第三段Their study found that air pollution can influence(影响) pollinators(传花粉者) - insects like bees and butterflies.Pollinators are important.They spread pollen(花粉) among plants with flowers.This helps the flower produce(产出)seed and fruit.Without pollinators...
For example, one theory is that dinosaurs were allergic to flower pollen — flowering plants and bees evolved together during the late Cretaceous period. However, flowering plants existed for millions of years before the dinosaurs died out. Another theory is that mammals, which began to proliferate...
The pollen grain is referred to as the male gametophyte that functions in producing sperm cells. The pollen grain from the flower?s male anther gets transferred to the stigma of the flower through a process called pollination.Answer and Explanation: ...
As the warmth of spring embraces the landscape, the Chattanooga comes alive with the vibrant hues of Tennessee's native flowers. It’s not just the gardens popping up everywhere – our city's bars are getting in on the action too, mixing up some awesome
of other flowers. Once fertilized, thepistilwill develop a fruit which has the potential to develop into a new plant. Many people are familiar with stamens and the pollen they carry because they tend to be prominent structures in a flower, as the flower wants to ensure that its pollen will...