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Q. Embryology in relation to taxonomy?
Embryological information has been used for taxonomic purposes at various levels of classification. You know of a very basic division of the plant kingdom into 2 units; the Thallophytes and the Embryophyta where plants are recognised on the basis of the behaviour of the zygote in addition to other characters.
1. Anther2. Quadripartition of the microspore mother cell.3. Pollen grain.4. Development and structure of the ovule.5. Origin and extent ,of the sporogenous tissue in the ovule.6. Megasporogenesis and development of the embryo sac.7. Form and organisation of the mature embryo sac.8. Fertilisation.9 .' Endosperm.10. Embryo.11. Seed-coat.12. Special features.
In the same way you are also aware that the characters of the embryo along with several other features provide the basis for the division of the angiosperms into 2 major groups, the monocotyledons and the dicotyledons.
Primitive Nervous System - Nerve Net A nervous system creates its appearance for the first time in the phylogeny among Cnidaria. In this group the nerve cells make an irregula
Q. What is the essential morphology of a protozoan cell? Protozoans are eukaryotic cells so they have structures and organelles common to this kind of cell endoplasmic reticula
G L YCOGEN Polymer of a-D-glucose. It has 5000-30000 units of a-D-glucose. Glycogen is glucosan homopolysaccharide which is the major reserve food of animals, fungi and
Explain some Handy Points related to Infant Feeding? Points to be kept in mind: • Introduce only one food at a time, giving only small amounts at first • Increase variety s
What is the etiological agent of cutaneous leishmaniasis? How is the disease transmitted and what are its typical manifestations? The etiological agent of cutaneous leishmanias
Write short note on glycogen storage diseases. Glycogen storage diseases are caused by genetic defects that result in deficiencies in certain enzymes of glycogen metabolism.
Categories of Air Pollutants From the above list you can see that the air pollutants can be broadly classified into the following two categories: Primary Pollutants
Define Historical Development of Food Processing? Food processing began thousands of years ago to help people keep food through the lean seasons. Several methods of preserving
How age factors affect the requirement of protein? Age: Protein in excess of maintenance needs is required, when a new tissue is being fornled. Certain age periods, when growth
Q. What are the main intraspecific ecological interactions? The major harmonious intraspecific ecological interactions are societies and colonies. The major inharmonious intras
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