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q what are the cells produced in the first stage of the embryonic development calledthe cells that result from the cleavage the first stage of the
q what is the cell division during the first stage of the embryonic development called how is this stage characterizedthe cell division in the first
q what are the four initial stages of the embryonic developmentthe four early stages of the embryonic development are the blastula stage the morula
q what are the animal pole and the vegetal pole of the vertebrate eggthe animal pole of a telolecithal egg is the portion of the egg with little
q what is the function of the vitellus in the vertebrate egg how are these eggs classified according to the amount of vitellus within themvitellus
q what is the cell division process directly related to the embryonic growththe embryonic growth depends directly on mitosis through this kind of
q what is parthenogenesisparthenogenesis is the formation or reproduction of a new individual from the egg cell but without fecundation by the male
q generally how does a male animal realize that the female is receptive to copulationin most vertebrate species with internal fecundation the females
q what is the contraceptive mechanism of the iudthe iud intrauterine device is a piece of plastic coated with copper that is put-in within the uterus
q how is the ovulation date estimated with the control of the womans body temperatureone method to estimate the exact ovulation day is daily control
q what is the normal duration of the menstrual cycle how does the calendar contraceptive method workthe normal duration of the menstrual cycle is 28
q why is the use of condoms not just a contraceptive method but also a health protection behaviorthe use of condoms besides being an efficient
q how does the contraceptive diaphragm work what are the limitations of this contraceptive methodthe contraceptive diaphragm is an artifact made of
q what are the most common methods of female and male surgical sterilizationvasectomy is the majority common method of surgical sterilization in men
q what are the common contraindications of the contraceptive pillsthere are medical reports associating the use of contraceptive pills with vomiting
q how do contraceptive pills generally workcontraceptive pills generally contain the hormones progesterone and estrogen if taken daily from the 4th
q what is the endocrine function of the placentathe placenta besides being the organ through which the exchange of substances between the fetus and
q does the hypophysis- ovaries endocrine axis work in the same way during pregnancy as in non-pregnant women if pregnancy does not occur how does
q how do hormonal tests to detect pregnancy worklaboratory tests to detect pregnancy commonly test for human chorionic gonadotropin hcg concentration
q what is tubal pregnancymany times fecundation takes place in the fallopian tubes in general the newly formed zygote is taken to the uterus where
q what is nidation in which phase of the menstrual cycle does nidation occurnidation is the implantantion of the embryo in the uterus and nidation
q how does the sexual arousal mechanism in women facilitate fecundationduring sexual arousal in women the vagina secretes substances to neutralize
q what is the part of the female reproductive system where fecundation occursfecundation in general occurs in the fallopian tubes but it can also
q in general what is the phase of the menstrual cycle when copulation may lead to fecundationalthough this is not a rule to be effective fecundation
q including major events and hormonal changes how can the menstrual cycle be describedone can imagine a cycle like an analog clock at which at 0