What prevents scuba divers from going deeper than 40 meters below the surface

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation