Taste (gustation) and smell (olfaction) are called chemical senses because both have sensory receptors that respond to molecules in the food we eat or in the air we breathe.
The right answer is option C
Producers have the greatest collective biomass
The answer is C. This is because the mind can make the body do anything, and the body can make the brain think certain things also. So basically the mind and the body play tag with each other on this topic.