Which one of the three muscle types are voluntary? ¿Cuáles de los tres tipos de músculos son voluntarios?

Skeletal

Esquelético

Skeletal , , Esquelético,

Cardiac

Cardíaco

Cardiac , , Cardíaco,

Smooth

Liso

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.