Answer:
SA node
Explanation:
The SA node (called the pacemaker of the heart) sends out an electrical impulse. The upper heart chambers (atria) contract. The AV node sends an impulse into the ventricles. The lower heart chambers (ventricles) contract or pump.
It shouldn’t become cancerous if the cell cycle is not damaged. When changes in the chromosomes are detected by the cell, it will enter the G0 stage of interphase and will no longer divide.
The process is called ovulation
Answer:
PLEASE MARK AS BRAINLIEST!!
Explanation:
In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment. ... The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species.
