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concerning reproduction what is the function of the testiclesthe testicles are the male gonads ie the organs where the production of gametes takes
what are the female pronucleus and the male pronucleusthe female pronucleus is the proper haploid nucleus of the egg cell male pronucleus is the
how does the male gamete penetrate the egg cell how does the female gamete protect itself from the entrance of more gametes after the entrance of the
why is the cytoplasm of sperm cells very reduced why do mitochondria of sperm cells concentrate in the base of the flagellumthe decreased cytoplasm
what is the function of the flagellum of the sperm cell how is it formedthe flagellum of the sperm cell is produced by the centrioles that migrate to
what is the acrosome of the sperm cell how is it formedthe acrosome is a structure that has a great number of digestive enzymes it is located in the
what is the relation among fecundation and the end of the meiotic process during oogenesisthe oocyte ii only completes the second meiotic division
what is the first polar body how different is it from the oocyte iiin oogenesis the oogonium differentiates into oocyte i 2n and this cell enters
indicating the name and respective ploidy of each involved cell how can the formation of egg cells from germ cells be describedthe formation of egg
concerning events during the periods of life how dissimilar is the gametogenesis in women and in menthe formation of spermatogonia in men takes place
what is the difference between spermatids and sperm cells what is the name of the transformation of spermatids into sperm cellssperm cells the male
what is the difference between spermatocyte i and spermatocyte iithe spermatocyte i 2n undergoes the primary division of meiosis meiosis i
what is the difference between spermatogonium and spermatocyte ithe male germ cells are the spermatogonia diploid cells 2n located in the testicles
indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be describedthe formation of
what are gonads what are the male and the female gonads in humansgonads are the organs that make gametes they have the germ cells that undergo
what is the name of the cells capable of making gametes what is the ploidy of these gamete-forming cellsthe cells that form gametes are the germ
what is the type of cell division that allows sexual reproduction what is gametogenesismeiosis is the type of cell division that permits sexual
what are gametes gametes are cells specialized in sexual reproduction they have half of the maximum number of chromosomes of the species and unite
why are vaccines used in the prevention but not in the treatment of infections why can antivenom serums be used in prevention and treatmentvaccines
why doesnt a long lasting vaccine against common cold exist yetviruses that show a high mutation rate like the virus that causes the common cold
why are vaccines made of the own disease agent or of fragments of itthe goal of vaccines is to artificially persuade a specific primary immune
what are natural active immunization and artificial active immunizationnatural active immunization is that in which a last natural infection induces
what is the difference between homologous and heterologous immunoglobulinshomologous immunoglobulin is the human from the similar species
how are antivenoms produced why are antivenoms an example of passive immunizationantivenoms are getting by the following process the venom antigen is
why is maternal milk important for the immune protection of the babybesides being nutritionally significant maternal milk participates in the defense