Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
what are the endocrine functions of the placentathe placenta has endocrine function since it secretes the hormones progesterone and estrogen that
q what are nuclear forces the force which conquers the electrostatic repulsion between positively charged protons and binds the protons and neutrons
is there a exchange of cells between the mother and the fetus through the placenta under normal conditions there is not a passage of cells across the
q write any three findings of binding energy curve i the binding energy per nucleon arrive at a maximum of 88 mev at a 56 corresponding to the iron
q define binding energy the energy equal of mass defect is called as binding energythere4 binding energy zmp nmn - m c2 deltam c2 here deltam is
q define 1 amuone atomic mass unit is thinks as one twelfth of the mass of carbon atom 6 c 121 amu 166 x 10 -27 kgq define mass defectthe
q tritium has a half life period of 125 years what fraction of the sample will be left over after 25 years hlp 125 yearsnumber of hlps in 25 years
q in 17 cl 35 compute the number of protons neutrons and electronsnumber of electrons 17 number of protons 17 number of neutrons
q select the pairs of isotopes isobars and isotones from the following nuclei11 na 22 12 mg 24 11 na 24 10 ne 23 isotopes are 11 na 22 11 na
what are the main substances transferred from the mother to the fetus through the placenta and from the fetus to the mother from the mother to the
in which type of animals does the placenta exist what is its main functiontrue placenta is present in placental mammalsthe placenta is produced from
why can the amnion also be considered an adaptation to terrestrial lifethe amnion is also an adaptation to dry land since one of its functions is to
what is the difference between amnion and chorionamnion is the membrane that covers the embryo chorion is the membrane that covers the amnion the
why can the allantois be considered an adaptation to terrestrial lifethe allantois is an adaptation to dry land because in embryos of oviparous
what are the extraembryonic membranes present in vertebrates the extraembryonic membranes that might be present in vertebrates are the yolk sac the
which is the extraembryonic membrane whose function is to store nitrogen wastes of the embryo is this function present in placental mammalian
how is the yolk sac formed what is the function of the yolk sacthe yolk sac is formed from the covering of the vitellus by some cells originated from
are the extraembryonic membranes the same in all vertebratesthe presence of each extraembryonic membrane varies according to the vertebrate classin
what are extraembryonic membranesextraembryonic membranes are membranous structures that appear in parallel with the embryo and play significant
what is polyembryonypolyembryony is the phenomenon in which a single embryo in its initial embryonic stage separates itself forming many new
what are twins genetically what are the two types of twins that can be generatedtwins are simultaneously generated within the mothers uterus
from which germ layer do the epidermis and the nervous system originate what are other organs and tissues made from that germ layerepidermis and
what are histogenesis and organogenesishistogenesis is the procedure of tissue formation in the embryonic development organogenesis is the process of
what are pleura pericardium and peritoneumpleura are the membrane that hides the lungs and the inner wall of the chest pericardium is the membrane
what is the coelom to which structures do coeloms give birth are all animals coelomatecoeloms are cavities delimited by mesoderm coeloms create the