Because of Van Der Waals force the water molecules attract each other and stick together ...
Answer:
question five is true and the second one is the second also
Explanation:
I would say ones that can be seen, it affects the physical era of life eg H20 one of its physical qualities is its clear... coloress
Explanation:
through photosynthesis setting organs convert solar energy to chemical energy which is then used to build carbohydrate molecules .the energy used to hold this molecule together is released when an organism breaks down food .cell then use this energy to perform work known as cellular respiration
Answer:
b. region of DNA consisting of the promoter, the operator, and coding sequences for structural proteins.
Explanation:
Operon is a segment of DNA that carry groups of genes coding for related proteins. An operon consists of an promoter, operator and coding sequences for structural proteins (regulatory and structural genes).
The promoter is the region in operon where RNA polymerase binds and initiates the process of transcription.
Regulatory DNA sequences are binding sites for regulatory proteins that control the expression of the operon "up" or "down." and structural genes code for proteins needed for cell function such as lactose metabolism.
Regulatory proteins acts as a repressor and when bind to operator, blocks the forward movement of RNA polymerase on the DNA.
Hence, the correct option is b.
