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Q. Describe Palynological Evidence?
Palynology is the study of pollen and spores. The taxonomic characters of pollen grains include wall structure, polarity, symmetry, shape and grain size. In angiosperms pollen grains are of two kinds viz. Monocolpate and tricolpate. Monocotpate pollen grains are boat shaped, have one long germinal furrow and one germinal aperture. This is characteristic of primitive dicotyledons and majority of monowtyledons. According to some palynologists the first flowering plants had monocolpate pollen grains. Tricolpate grains are globose, symmetrical, have three germinal apertures and are characteristic of advanced dicotyledons.
Q. What are the major orders of placental mammals? What are a few representative species and distinguishing features of each of those orders? The orders into which placental ma
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Clinical Manifestations i) Evidence of Systemic Infection Fever, chills, rigor, night sweat, loss of weight, arthralgia, arthritis, backache, muscle pain. ii) Ev
Q. Generally which phase of the cell cycle has longer duration? The mitotic phase has quite a shorter length and the interphase comprises approximately 4/5 of the cell cycle.
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i need to decribe, analyse and evaluate the 2cells
theory of scientific naming system
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