After one half-life, % of the atoms will change to a stable isotope and % will remain radioactive. After three half-lives, % of the atoms will change to a stable isotope and % will remain radioactive.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

The activity of the modern sample is 1.10 bq . how long does that measurement take?