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Anemophily - Cross-pollination
It is also commonly referred to as wind pollination, i.e., the pollen grains are carried through wind currents. To ensure good pollination the anemophilous plants produce astronomical number of small, dry, light and smooth pollen grains that are released preferably on warm and dry days. Flowers in such plants are unisexual with reduced sepals and petals so as to effectively position the long and feathery stigma for pollen interception. Stamens have long filaments and are exposed to facilitate convenient pollen dispersal, Palms, grasses, millets, bamboos are common examples.
What are the extraembryonic membranes present in vertebrates? The extraembryonic membranes that might be present in vertebrates are the yolk sac, the amnion, the chorion, the
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Why do few plants adapted to a dry environment open their stomata only at night? Throughout the day in dry habitats the guard cells become the stomata close and flaccid; concur
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Simple diffusion Only comparatively small uncharged or hydrophobic molecules (H2O, O2, and CO2, other gases, urea and ethanol) cross the lipid bilayer through simple
animals respiratory
Define Estimation of Blood Thiamin Levels - Thiamin Status? The levels of free thiamin and its phosphoesters in whole blood and erythrocytes are measured using high- performanc
An island may be colonised by just a few individuals, or just a pair:, or even a single gravid female. When a new population develops from these early colonisers of the island, the
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