What is the specific function of signal cells releasing chemical messages to nearby cells during early embryonic development? 1.The chemical messages will impact the cells, resulting in change to gene expression.

2. The chemical messages will facilitate the transfer of mRNA.

3. The signaling cells will initiate programmed cell death in nearby cells.

4. The signaling cells will prevent DNA mutation in nearby cells.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.