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A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate
This list of Latin and Greek words commonly used in systematic names is intended to help those unfamiliar with classical languages to understand and remember the scientific names of organisms. The binomial nomenclature used for animals and plants is largely derived from Latin and Greek words, as are some of the names used for higher taxa , such ...
geothermal energy - energy derived from the natural heat of the earth contained in hot rocks, hot water, hot brine or steam. global acres see global hectares. global dimming – a reduction in the amount of direct solar radiation reaching the surface of the earth due to light diffusion as a result of air pollution and increasing levels of cloud ...
Plant habit can also refer to whether the plant possesses any specialised systems for the storage of carbohydrates or water, allowing the plant to renew its growth after an unfavourable period. Where the amount of water stored is relatively high, the plant is referred to as a succulent. Such specialised plant parts may arise from the stems or ...
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A vascular plant adapted to living in salt water or fresh water aquatic environments. area effect The biogeographic hypothesis that larger islands are able to support more species than smaller ones. atmosphere Earth's atmosphere is composed of gases and water which are retained by Earth's gravity and help to retain heat and reflect UV radiation ...
Transpiration is the movement of water through a plant and out of its leaves and other aerial parts into the atmosphere. This movement is driven by solar energy. [ 4 ] In the tallest trees, such as Sequoia sempervirens , the water rises well over 100 metres from root-tip to canopy leaves.
At night, transpiration usually does not occur, because most plants have their stomata closed. When there is a high soil moisture level, water will enter plant roots, because the water potential of the roots is lower than in the soil solution. The water will accumulate in the plant, creating a slight root pressure.