Complex sentence: These substances can then begin to affect the biochemical morphology of the developing embryos or newly hatched larvae, leading to underdeveloped cardiovascular systems, decreased nerve functions, decreased endocrine and hormone secretions, and reduced gill tissue development.
Split into simpler sentences: These substances can then begin to effect the biochemical morphology of the developing embryos or newly hatched larvae. Such exposures can lead to under-developed cardiovascular systems, decreased nerve functions, decreased endocrine and hormone secretions, and reduced gill tissue development.