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- Subject
- Biology Mcqsbiology-mcqs
- Published
- 23 May 2018
- Last updated
- 28 May 2026
Explanation
Rigor mortis happens because ATP, which is essential for separating actin and myosin filaments in muscle cells, is no longer produced after death. Without ATP, the muscles remain contracted, causing stiffness. Other factors like protein accumulation or temperature drop do not directly cause this stiffening.
More Biology Mcqs
Practice related questions from the same subject.
- 1.Which field of study focuses on the cultivation of crops and the management of soil?
- 2.What does pedology focus on studying?
- 3.What is another name for mitochondria?
- 4.Which field focuses on examining the interactions between antigens and antibodies present in the blood?
- 5.Which scientific discipline focuses on organizing and categorizing living organisms?
- 6.In the scientific name Homo sapiens, which two taxonomic categories are represented by the Latin terms?
- 7.Which virus is responsible for causing rabies?
- 8.Which of the following conditions is commonly associated with multiple opportunistic infections?