Explain embryonic sac
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
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The embryonic sac refers to the female gametophyte of the angiosperms. The embryonic sac generally composed of three cells which remain next to micropyle, two lateral synergids and the central oosphere (egg); the polar nuclei, one binucleated cell, is placed within the central region; three antipodal cells remain in the opposite side to micropyle. As all these cells come through the mitosis from the functional megaspore they are haploid (n).
Explain the lymphatic system?
American trypanosomiasis: It is commonly known as Chagas disease, caused by Trypanosoma cruzi, is a parasite, found mostly in blood sucking triatomine insects. The organism T cruzi and infection in humans were first introduced in 1909
After the neurula phase and from its ventral part to the dorsal how can the morphology of embryo be explained?
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Explain how heart contraction triggered?
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How dissimilar are the respiration in fishes and the respiration in adult amphibians?
Where the sporophyte is positioned in relation to the gametophyte within the bryophytes? How the sporophyte attain the nutrients?
Please i would need help in the writing of my assignment paper on women and genders studies. The essay is supposed to be an argument note which should be presented in this order: 1) introdu
What occurs to a denatured enzyme about its functionality? How can that answer be described with the aid of the lock and key model?
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