The short answer is that cells respond to the chemical environment in which they find themselves. The cells around them, the specific conditions, and feedback from the environment all create specific chemical cues that inform the cells to which genes should be expressed, and in what amounts. Chemicals include hormones, cytokines, general signaling molecules, such as cAMP, etc.
i literally hopped on google for this, lol.
i hope this helps though. :)
The Circuit-Level involves the spinal cord.
Answer:
Flood barriers are very affordable, lightweight metal barriers may be installed in different places and taken away when water disappears.
Explanation:
Execration in man
transport and gutation in plant
Answer:
via hydrogen bonds; there are two between adenine and thymine and three between cytosine and guanine
