After Three Half-Lives,one-Ninth of an Original Radioactive Parent Isotope Remains,and

question 46

True/False

After three half-lives,one-ninth of an original radioactive parent isotope remains,and eight-ninths has decayed into the daughter isotope.

---

Definitions:

Endothermic

A reaction or process accompanied by or requiring the absorption of heat.

Sensory Systems

The complex network of receptors and neural pathways in organisms that process information from the environment, including vision, hearing, smell, taste, and touch.

High Speeds

Rapid rates of motion or operation, often significantly faster than average or expected.

Crop

Cultivated plants or agricultural produce, such as grain, vegetables, or fruit, considered as a group.