Before the eukaryotic cell can go to the G1 phase to S
phase, it must first, grow. It is necessary for the eukaryotic cell to grow and
do this in order to prepare itself before undergoing the replication of DNA.
Probably the Biosphere: where things live and grow
<span>d. skin
It protects the body from a lot of places and keeps pathogens from coming in the body. Tears protect the eyes, mucus the nose and saliva the mouth.
Hope this helps :)</span>
A. Response is the system's reaction to the stimulus.
It doesn't have to be irritability - not every stimulus is unpleasant. And also, it's not adaptability, because you cannot always adapt to a stimulus, for example, to pain.
The general function of lactase is to regulate cell processes. It is an enzyme, and enzymes act as catalysts of chemical reactions within the body. It regulates different chemical reactions including breakdown of food substances, etc.