The process by which receptor cells detect stimuli is called:

The process is called sensation.

Sensation can be defined as a process whereby the sensory receptor cells are activated to detect environmental stimulus. Thus, main function of sensory receptor cells is to enable us to learn about our environment or detect any sensations. However, information can be received by sensory receptor from outside the body such as touch receptor on the skin or light receptor in the eye.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.