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The vegetal pole contains large yolky cells that divide very slowly, in contrast with the animal pole above it. In some cases, the vegetal pole is thought to differentiate into the extraembryonic membranes that protect and nourish the developing embryo, such as the placenta in mammals and the chorion in birds.
Melaleuca decussata, commonly known as cross-leaf honey-myrtle or totem poles, is a plant in the myrtle family, Myrtaceae native to South Australia and both native and naturalised in Victoria. It is an adaptable shrub, grown in many parts of Australia for its attractive foliage but it is regarded as an environmental weed in parts of Victoria.
Full state feedback (FSF), or pole placement, is a method employed in feedback control system theory to place the closed-loop poles of a plant in predetermined locations in the s-plane. [1] Placing poles is desirable because the location of the poles corresponds directly to the eigenvalues of the system, which control the characteristics of the ...
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
Now the dominant nitrogen-fixing plant in the eastern United States, kudzu fixes an estimated 235 kilograms per hectare (209 + 11 ⁄ 16 lb/acre) of nitrogen per year, which is an order of magnitude higher than the rates of native species. [6] This ability allows it to flourish in nitrogen-poor sites where other plants are unable to grow.
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