The cell membrane gateway system you are looking for is called <span>Sodium Potassium Pump.</span>
Answer:
Protista
Explanation:
Protista is the first class of multicellular organism that arose in history. The first of this member is cyanobacteria.
Cyanobacteria is large group of photosynthetic organism that produce their own food by using light energy from sun and carbondioxide.
The first evidence of multicellularity is from cyanobacteria-like organisms that lived 3–3.5 billion years ago.
They help to can convert inert atmospheric nitrogen into an organic form, such as nitrate or ammonia.
Charles and Francis Darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling that detects the direction of light is the "tip of the coleoptile."
This can be determined after the age of 2. A child with a high BMI (body mass index) prediction, would be at risk of becoming overweight.
The endosymbiotic theory states that eukaryotic cells might have evolved from prokaryotic cells through a close realtionship.