Living Matter Has 1

question 67

Multiple Choice

Living matter has 1.3 × 10^-10 % of its carbon in the form of ¹⁴C which has a half-life of 5730 y.A mammoth bone has a 300-g sample of carbon separated from it,and the sample is found to have an activity of 20 decays per second.How old is the bone?

• A) 15,000 y
• B) 10,900 y
• C) 11,500 y
• D) 7600 y
• E) 6400 y

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Definitions:

Infundibulum

The tube-shaped end of each fallopian tube.

Clitoris

A sensitive organ located at the anterior end of the vulva, involved in female sexual pleasure.

Endometrium

The inner lining of the uterus, which thickens during the menstrual cycle in preparation for potential implantation of an embryo.

Cervix

The lower part of the uterus connecting to the vagina; plays a critical role in childbirth and menstruation.