Which Best Describes "Rigor Mortis

question 26

Multiple Choice

Which best describes "rigor mortis?"

• A)Lack of ATP following death causes cross-bridges to remain tightly bound to actin.
• B)Lack of ATP following death causes calcium to remain in the cytosol,continuously stimulating cross-bridge cycling.
• C)Repeated,high-frequency action potentials to a skeletal muscle fiber causes sustained contraction following death.
• D)Following death,calcium-activated proteases degrade all proteins in skeletal muscle fibers,making muscles limp.
• E)Build-up of K+ in T-tubules causes constant,tetanic contractions of skeletal muscles that last for about 12 hours following death.

---

Definitions:

Comprehensive Environmental Response

A legislative framework aimed at facilitating the cleanup of sites contaminated with hazardous substances, also known as the Superfund.

Kyoto Protocol

An international treaty that commits its Parties by setting internationally binding emission reduction targets to mitigate the effects of climate change.

Net Impression

The overall impression created by all elements of an advertisement or communication, considered as a whole.

FTC Act

Refers to the Federal Trade Commission Act which established the Federal Trade Commission (FTC) and empowers it to prevent unfair competition and prohibit deceptive practices in commerce.