They exhibit considerable molecular complexity and diversity
Answer: The virus weakens as time passes.
Explanation: The virus will weaken continuously during transmission, and will reduce its toxicity after several generations of transmission, without causing much harm to the human body.
Answer:
Being raised in conditions of extreme deprivation is an environmental influence that has the clearest, most profound effect on intellectual development.
Explanation:
The more advance the community the more complex the speciess
Answer:
hydrogen bond
Explanation:
by weak electrical attraction between two polar molecule hydrogen bond is developed between them
the example is water molecule in case of water two water molecules are attracted toward each other by strong hydrogen bond which is developed between highly electronegative oxygen of one water and electropositive hydrogen of another water molecule
