So planarians' regenerative ability are powerful cells called pluripotent stem cells, which make up one-fifth of their bodies and can grow into every new body part. I hope this helped if you need more info about this let me know
The answer is atrial depolarization. The P wave of a normal electrocardiogram specifies atrial depolarization. In addition, depolarization happens in the four compartments of the heart which is both atria first and in both ventricles. The sinoatrial or as called as SA node on the wall of the right atrium starts depolarization in the right and left atria that can cause the contraction in which it is symbolized by the P wave on an electrocardiogram.
The most accurate answer is release water vapor.
Stomata are special pores in plants found typically on the outer leaf skin layer called the epidermis. They consist of two specialized cells called guard cells that surround a tiny pore called a stoma.
Their main function is to allow water vapor and gases such as carbon dioxide and oxygen to move rapidly in and out of the leaf.
The word stomata means mouth in Greek because they allow communication between the internal and external environments of the plant.
I would say hydrophilic molecules that provide energy for the body. Hope it helps!
Answer:
that means they are not a prey to any animal