Explanation:
Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant in response to gravity pulling on it. It also occurs in fungi. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.
It goes from cool to high to low again and goes on a continuous loop
Answer:
Blood is prevented from flowing back into the atria by heart valves. Blood leaves the heart in the body's main artery - the aorta - from the left side, and the pulmonary artery, from the right. Humans have a double circulatory system.The atria contracts when they are around 50% empty.This ensures all the blood is emptied from the atria and enters the ventricles.
Explanation:
have a good day <3...