What environmental factors have an adverse effect on the development of the embryo?

The influence of environmental conditions on the development of the embryo. In the embryonic period, the development of any organism depends on environmental conditions. Moreover, to a greater extent, this dependence is manifested in invertebrates. The eggs of birds are practically isolated from the environment, and the parents provide the optimum temperature for the embryo during incubation. In placental mammals, the “mediator” between the embryo and the environment is the mother’s organism, from which the embryo receives nutrition, oxygen, and heat.