Search results
Results From The WOW.Com Content Network
These plants, normally woody perennials, grow stems into the air, with their resting buds being more than 50 cm above the soil surface, [10] e.g. trees and shrubs, and also epiphytes, which Raunkiær later separated as a distinct class (see below). Raunkiær further divided the phanerophytes according to height as Megaphanerophytes ...
Epiphytes however, can generally be categorized into holo-epiphytes or hemi-epiphytes. A holo-epiphyte is a plant that spends its whole life cycle without contact with the ground and a hemi-epiphyte is a plant that spends only half of its life without the ground before the roots can reach or make contact with the ground. [8]
Hemi-epiphytes (Pseudo-lianas) Eb Plants that germinate and root on other plants (these include dead standing plants, telegraph poles and wires, stumps and such like) Epiphytes; Cc Free-moving water plants (= errants) Errant vascular Hydrophytes; Bb Thallophytes (= non-vascular cryptogams) Fa Plants attached to the ground surface Ga Perennials
Macrophytes perform many ecosystem functions in aquatic ecosystems and provide services to human society. One of the important functions performed by macrophyte is uptake of dissolved nutrients including nitrogen and phosphorus. [39] Macrophytes are widely used in constructed wetlands around the world to remove excess N and P from polluted ...
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
This page was last edited on 19 July 2021, at 16:23 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Pollen grains can be physically transferred between plants by the wind or animals, most commonly insects. Pollen grains can also transfer to an ovule of the same plant, either with the same flower or between two flowers of the same plant (self-fertilization). When a pollen grain reaches an ovule, it enters via a microscopic gap in the coat, the ...
Human interactions with fungi include both beneficial uses, whether practical or symbolic, and harmful interactions such as when fungi damage crops, timber, food, or are pathogenic to animals. Yeasts have been used since ancient times to leaven bread and to ferment beer and wine .