Vascular plants are defined as any plants that exhibit xylem and phloem, the vascular tissues. The vascular plants composed of all seed-bearing plants such as gymnosperm and angiosperm and the
Explanation of Solution
The wind-pollinated angiosperms usually have small flowers but have a large amount of pollen whereas, animal-pollinated angiosperm have larger flowers but less pollen.
The movement of a pollen grain from an animal-pollinated angiosperm is effective compared to the wind-pollinated conifer. This is because the wind-pollinated angiosperms (plants) can reproduce only if their populations are high in numbers. As no wind-carried pollen is probably to fall on isolated individuals, low population density species may go extinct.
On the other hand, since animal pollinators effectively search for rare species, they can persist at decreased population densities.
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- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning