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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.
Connect point A and D by line which is convex to the left. The left border is formed by the left ventricle except at its upper end which is formed by the left auricle where there i
#FUCTIONS OF THE EPIDERMIS#
Circulatory System - Developmental Changes We have learnt that throughout foetal life, gas exchange takes place, only through the placenta and not through lungs. Therefore, t
Define Preparation of Dilutions - Standard or Total Plate Counts? 1. Serial dilution of homogenized sample in an appropriate diluent. Preparation of dilutions - Decimal dilu
URINARY BLADDER - Pear shaped sac like. Situated in pelvic region of abdominal cavity. Ventrally placed. Lined by transitional epithelum. Detrusor muscle i.e. to expell out
Tertiary Prevention: In tertiary prevention, emphasis is placed on reducing disability resulting from illness. Tertiary prevention often means long term care. Disability may r
Define Obligatory and Facultative water excretion? i) Obligatory water excretion: The kidney is 'obligated' to excrete some water to rid the body of its daily load of urinary s
ROLE OF FAT OR LIPIDS - Made up of fatty acids & glycerol. Linked by ester bond. Maximum quantity of energy is librated. Helpful in temperature regulation. As stored f
Mineral availability of organic mineral complexes A number of mineral chelates and complexes are available from a variety of manufacturers. A chelate is described as a metal c
Different types of stems (a) Monocots. Secure stems of various plants such as bamboo, sugar cane and corn. Cut every of the stems crosswise with a very sharp knife or razor bl
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