Related to embryonic period:fetal period em·bry·on·ic (ĕm′brē-ŏn′ĭk)alsoem·bry·on·al(ĕm′brē-ə-nəl) adj. 1.Of,relatingto,orbeinganembryo. 2.alsoem·bry·ot·ic(-ŏt′ĭk)Rudimentary;incipient:anembryonicnation,notyetself-governing. ...
embryo (ˈembriəu)noun–pluralˈembryos– 1.a young animal or plant in its earliest stages in seed, egg or womb.An egg contains the embryo of a chicken;(also adjective) the embryo child.embrión 2.(also adjective) (of) the beginning stage of anything.The project is still at the...
Moral Thinking about the Embryo–Fetus Period: Reconsidering the Problems of Identity and ExistenceOur moral thinking sometimes focuses on the possibilities given before birth. However, depending on circumstances, some children might never be brought into the world. The problem is how to consider the...
Thus adult characters were forming already in the embryo, and there was no free larval stage. The embryonic development took place within a smooth protective membrane. Gastrulation probably was by polar ingression, and the blastopore appears to correspond to the aperture of the later stages. An ...
“Embryo” is the life interval that encompasses the period from fertilization to form a zygote to the time that the egg Conclusions Fish embryo testing of chemicals has matured to the point that international standardization, method validation, and broadening of chemical coverage is rapidly occurring...
exocarp woody exocarta exoccipitalfissure exochorda giroldii exocoelomextraembryon exod exodia the forbidden exodites exogenic infection exogenous adbominal d exogenous explanatory exogenous inclusion exogenous non-metalli exogenous pollution exomoon exomoons exomorphic exonerate from exonucleases bacteria exop...
Although the heart has nerves that affect its rate, they are not primarily responsible for its beat. The heart starts beating in the embryo before it is supplied with nerves, and continues to beat in experimental animals even when ...
Sex and the preimplantation embryo: implications of sexual dimorphism in the preimplantation period for maternal programming of embryonic development The developmental program of the embryo displays a plasticity that can result in long-acting effects that extend into postnatal life. In mammals, adult phe...
is a good example of how sensible regulations can make the world safe for valuable but controversial research. After four decades it has reached the end of its usefulness. Just as a generation of test-tube babies now have children of their own, so it is time to let embryo research grow ...
Overall, these results demonstrate that a period of cohabitation between larvae and specific bacterial species, such as L. brevis, is mandatory for the emerging adult to perceive PGN as an aversive molecule by ppk23+ neurons. Discussion The data presented here demonstrate that adult flies are comp...