The answer is skin. The skin is also the largest organ in the body and has the most contact with the outside environment. It is estimated that there are approximately 205 identified genera of bacteria alone on the skin. This normal flora of the skin play significant roles in the body such as augmenting immunity.
Chloroplasts are the organelles that contain the chlorophyll pigment, which is essential for the good-making process of photosynthesis.
The bacterial genes are usually found in operons. Each operon comprises regulatory sequences of DNA that function as binding sites for regulatory proteins, which inhibit or encourage transcription. The regulatory proteins usually combine with small molecules that can make the protein inactive or active by altering its tendency to combine with DNA.
The four combinations of active or inactive regulatory proteins, which could be observed at any time in the cell are:
1. Active repressor, active activator,
2. Active repressor, inactive activator
3. Inactive repressor, active activator
4. Inactive repressor, inactive activator
Answer:
Psychoactive
Explanation:
Psychoactive effects of drugs are capable of changing the mood, awareness and thoughts of the users/consumers.
Psychoactivity of drugs gives rise to change in the information exchanges between the cells of the brain.They are also able to copy the effects and behavior of neurotransmitters. This gives rise to continued dependence and addiction of such drugs.
Example of psychoactive drugs include cocaine, cannabis, alcohol etc
