The characteristic muscle stiffness associated with rigor mortis is due to the inability of myosin filaments to detach from the active site on actin filaments. what molecule is essential for this detachment?

Answer;

ATP

ATP is the essential molecule for the detachment.

Explanation;

-Muscles use actin and myosin molecules to convert the energy of ATP into force.

-During the power stroke, the phosphate generated in the previous contraction cycle is released which results in the myosin head pivoting toward the center of the sarcomere, after which the attached ADP and phosphate group are released.

-A new molecule of ATP attaches to the myosin head, causing the cross-bridge to detach.

-The myosin head hydrolyzes ATP to ADP and phosphate, which returns the myosin to the cocked position.

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.