The muscles of a recently deceased human can remain in a contracted state, termed rigor mortis, for several hours. What prevents the muscles from relaxing soon after death

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

the growth of the plants is affected by the heat of the light. what is the student doing?