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Q. Do echinoderms present external or internal fecundation? Is there sex division among individuals?
The fecundation in echinoderms is external, gametes are liberated in water where fecundation occurs.
The majority of echinoderms are dioecious with female and male individuals.
FEMALE REPRODUCTIVE SYSTEM - In female mammals the female reproductive system characteristically comprises of the ovary, uterus, placenta, vagina and vulva.
1. DNA damaga can be spontaneous or can be 'Induced by external agents a. What are 'spontaneous' mutations? Give examples of causes of spontaneous mutations and the kinds od DNA
"Diversity is good" is one of the axioms of conservation biology. However in absentia of historical information, why is noting higher diversity in a system NOT the best way to eval
The five kingdom systems To cope up with above discussed problem a number of alternative classificatory schemes have been suggested with more than two kingdoms. The one which h
BON E MARROW TRANSPLANT - It is transplanted to treat leukemia. Here, graft itself causes immune rejection. Before transplant, the recipient's bone marrow cells, incl
Explain the Stages In Taxonomic Procedures? Divided into three levels or phases: 1) Alpha (α) phase, 2) Beta (β) phase, 3) Gamma (γ) phase. Alpha Taxonomy The
What is the action mechanism of the antibiotic penicillin? Penicillin, discovered by the Scottish doctor Alexander Fleming in 1928, is a drug that inhibits enzymes essential fo
Trichomonas vaginalis - Protozoan This cosmopolitan protozoan lives exclusively in the female vagina and male urethra or prostate. It causes a mild disease called trichomonas
Q. What is the kind of life cycle present in pteridophytes? Like all plants pteridophytes present diplobiontic (alternation of metagenesis or generations,) life cycle.
What is Palliative Outflow Patch ? Brock described closed pulmonary valvotomy and infundibular resection using a punch on a beating heart. When both pulmonary arteries are not
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