The F Ring, the Cassini Division, and the C Ring are bright ring features. They are bright due to the low concentration of materials within them, which allows sunlight to shine through.
Answer: FALSE is my best guess on this one.
if it's wrong I'm sorry i dinin't help you on this and have a great day
Analagous structures. For example, both penguins and dolphins have torpedo shaped heads that help them adapt to their enviroments. They were both in different environments, but they developed similar adaptations to increase their ability to survive in their environments.
Histamine inhibits the chemotaxis which is the movement of cells along the gradient.
Histamine:
It is a neurotransmitter that is released by the mast cells in response to an allergen that causes an allergic reaction. It is responsible for redness of the inflamed area, heating, movement of leukocytes, and defense proteins to the site of injury. Histamine is responsible for vasodilation and increased permeability. The immune cells move to the site of injury and cause the flow of blood to the injured site. It plays an important role in allergic and hypersensitivity reactions. Histamine is also responsible for gastric secretion, smooth muscle contraction, and itching.
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