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Q. Show the Embryological Evidence?
Embryology is the study of the successive stages of sporogencsis , gametogenesis and the growth and development of the embryo. The number of nuclei in the pollen grains at the time of pollen dispersal is either two or three. Double fertilisation is an example of embryological unity throughout the angiosperms. Based on the number of cotyledons, monocotyledons are separated from dicotyledons. The binucleate pollen is derived. Embryology has had systematic significance in the grass family, where with several other characters it has been used to revise the family's classification. In animals the embryological evidence is of great significance, e.g. the Anopheles maculipennis complex is broken into a number of sibling species on the basis of their egg structure. In Dacus oleae and ceratitis capitata.(fruit flies) the whole eggs are separated on the basis of the character of anterior pole and the whole classification of white flies is primarily based on the structure of their pupae.
Q. What is the evolutionary importance of pteridophytes? As the first pteridophytes, tracheophytes were also the first plants to extensively colonize the terrestrial environmen
Benzathine penicillin given every three weeks as IM injection (1.2 mega units) has given the best results. Oral agents (penicillin V) are given in patients with lower risk of rheum
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Are protozoans presenting contractile, or pulsatile, vacuoles easily found in fresh or in salt water? Fresh water is the less concentrated of solutes than sea water and it (fre
Q. Show Cardiovascular Risk Factors? It must be coming in your mind several times that why do some people suffer from heart disease while others do not? Well the most obvious r
Describe about the extra-ocular muscles The extra-ocular muscles are mainly involved in the maintenance of postural tonicity and performance of quick contractions. The prima
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what is impotence?
You are interested in plant life history evolution, you come across a population of the California poppy that i spolymorphic (mixed) for both iteroparous ans semeparous individuals
Nutrient stability as affected by processing of feeds Nutrient stability under normal conditions of storage and processing is one of the important factors determining the effe
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