Please help help help

i believe the answer would be b. hope it : )

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

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