Predator-Prey Relationships. â¢ An interaction in which one animal (the predator) captures and feeds on another animal (the. prey) is called ______________________. â¢ Predators can affect the ___________ of prey populations in a community and determine the. places prey can __________________________________.redator-Prey Relationships. â¢ An interaction in which one animal (the predator) captures and feeds on another animal (the. prey) is called ______________________. â¢ Predators can affect the ___________ of prey populations in a community and determine the. places prey can __________________________________.
Noun. 1. Gy-the SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad. gray. radioactivity unit-a measure of radioactivity.
Ionizing Radiation: Any electromagnetic or particulate radiation capable of producing ion pairs by interaction with matter. Scope limited to X and gamma rays, alpha particles, beta particles (electrons), neutrons, and charged nuclei. Particularly important biologically since media can be altered (e.g., ionized atom in DNA molecule may be altered, thereby causing cell death, or a change in cell reproduction, division, or mutation).