C
Crossing over during meiosis allows for genes to cross from one chromosome to another. This will result in more mutations and therefore greater genetic diversity.
Your immune system protects you from bacteria and viruses. Sometimes it misreads a harmless substance as a threat. When that happens, your body creates chemicals, like histamine, that trigger an allergic reaction. It's unclear what causes your immune system to make the mistake about certain things.
Because we need paper and maple coasters and furniture.
Answer: 12 per cent
Explanation:
The REM sleep is associated with the prolonged erections males and pelvic thrusting in the females.
It is not being pursued for further studies as a concern of the function of REM sleep. The Yu and Fu found that the sleep involves the dreams about sexual activity.
The desires and fantasy of the real life appears to be complete in the dreams and 12 per cent of the total population see these dreams.