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How different are pteridophytes from bryophytes regarding substance transport?
Pteridophytes are tracheophyte (vascular) plants, i.e., they have tissues specialized in conduction of water and nutrients. Bryophytes are nonvascular plants. In pteridophytes thus the substance transport is done by vessels and in bryophytes that transport happens by diffusion.
Which type of cell came first in evolution - the eukaryotic cell or the prokaryotic cell? This is an interesting problem of biological evolution. The most accepted hypothesis a
Define Meitrac System Instrument Removal System a) Trephining bur to remove dentine and uncover the coronal end of the file b) Extractor of appropriate size is placed over t
Q. ST Depression only on Recovery? Although ST depression during exercise often persists into recovery, it may not manifest until exercise has been terminated. The reasons for
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Archaeological data provide valuable information about the uses of plants in the past. Information comes from a number of sources, including fossil plant and human remains as well
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Alterations occuring in cereal & cereal products, legumes You are already aware of the chemical composition of cereals and pulses. We will now look into changes occurring in t
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What are the three main types of trophic pyramids studied in Ecology? The three kinds of trophic pyramids studied in Ecology are the numeric pyramid, the biomass pyramid and th
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