Answer: Osmosis
Explanation: Osmosis is a process in which water move from an area of low solute concentration to an area of high solute concentration through a selectively permeable membrane. For osmosis to occur, it must be through a selectively permeable membrane. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.
Answer:
a mucus or a gelatinous sheath
Explanation:
Most species of cyanobacteria are enclosed in a gelatinous sheath which is made up of proteins.
The answer is A, Chemical to Mechanical.
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Veins being squeezed between contracting muscles to help pump blood toward the heart is known as the Skeletal muscle pump.
The Skeletal muscle pump is a group of skeletal muscles which assists the heart in the blood circulation. It is specifically significant in increasing venous return to the heart, however it may also perform a part in arterial blood flow.
Skeletal muscles aid in bringing venous blood back to the heart, particularly in the lower limbs.
Veins inside the muscle are squeezed in response to the muscle contraction and this functionally serves as a secondary pump. This process pushes the blood, which would else be stockpiled in the lower limbs, back to the heart.
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