The reason for the success of this evolutionary step is that under relatively low atmospheric C02 conditions, like those existing at present, water transport efficiency and photosynthetic performance are tightly linked.... read more ›
The primary purpose of the flower is reproduction. Since the flowers are the reproductive organs of the plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.... see details ›
Flowering plants have a reproductive advantage over gymnosperms because of different adaptations such as having flowers t allow for pollination and fruit for seed dispersal.... see details ›
Plants were among the earliest organisms to leave the water and colonize land. The evolution of vascular tissues allowed plants to grow larger and thrive on land.... continue reading ›
They began changing the way the world looked almost as soon as they appeared on Earth about 130 million years ago, during the Cretaceous period.... view details ›
Evolution relies on there being genetic variation? in a population which affects the physical characteristics (phenotype) of an organism. Some of these characteristics may give the individual an advantage over other individuals which they can then pass on to their offspring.... continue reading ›
flower is important to a plant because it makes seed and help plant to reproduce. A plant that use flowers to make seeds are called flowering plants.... see details ›
WHY ARE FLOWERS IMPORTANT? Flowers' importance in nature is everywhere-they can feed insects, birds, animals and humans; provide natural medicines for humans and some animals; and aid in a plant's reproduction by enticing outside pollinators.... see details ›
The most important function of flowers is reproduction. They help in the union of male and female gametes. Flowers provide nectar to certain birds and insects, which in turn help in the transfer of pollen from one flower to the other.... see details ›
- Food. The prime advantage of flowering plants is in their food value. ...
- Attract Wildlife. Flowering plants attract wildlife, though many gardeners wish the deer and rabbits would stay away. ...
- Feed. ...
- Medicine. ...
- Ornamentation. ...
- Wood. ...
- Erosion Control.
Plants have evolved several adaptations to life on land, including embryo retention, a cuticle, stomata, and vascular tissue.... see details ›
Origin of vascular plants required three important evolutionary advances: (1) sporophytes became able to grow independently of their parents after the embryonic stage; (2) sporophytes were able to branch; and (3) sporophytes acquired lignin-walled vascular tissues.... continue reading ›
6. What are some examples of evolution in the plant world? Vascular tissues, seeds, flowers, and stomata are major examples of evolution in the plant world.... see details ›
Evolution occurs through natural selection, which also applies to plants. For example: Some plants are able to live in very dry areas. Plants that are well adapted to a dry area (hairy leaves, reduced leaf surface area, etc) will be more likely to survive and reproduce than a plant poorly adapted to dry areas.... read more ›
Firstly, from an evolutionary perspective, the flower as a species uses, among others, the strategy of activating humans to grow and to propagate it, just as it activates insects with pollen. The plant thus uses its aesthetic characteristics to attract humans .... see details ›
The oldest known fossils of angiosperms, showing some typical parts of a flower, like carpels and stamens (the reproductive organs of a flowering plant) but lacking others, like petals (modified, brightly colored leaves to attract pollinators), were found in China, dating to the early Cretaceous.... read more ›
Botanists now believe that plants evolved from the algae; the development of the plant kingdom may have resulted from evolutionary changes that occurred when photosynthetic multicellular organisms invaded the continents.... see details ›
Paleobotanists have more recently uncovered tiny herb-like flower fossils dating back 120 million years. Flowering plants, called angiosperms by scientists, were believed to be already diverse and found in most locations by the middle of the Cretaceous period… 146 million years ago.... read more ›