<span>Sheree observed an amoeba feeding by engulfing the prey with its false feet or pseudopods. This process is known as
phagocytosis.
The term comes from Greek and means: <em>phagein = to devour, kytos = cell, -osis = process, </em>so it literally means that it refers to a process in which a certain type of a cell (in this case, an amoeba) devours or eats another thing.
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Increasing the cell's volume would reduce the efficiency of the diffusion of materials through the plasma membrane into the cytoplasm of the cell.
On the other hand, increase the surface area and decreasing the volume oft the cell would increase the rate of diffusion across the plasma membrane.
<span>It depends on motor proteins and micro-tubules. Motor proteins are proteins that transform chemical energy into mechanical energy which helps cell movement and they also move along a surface. Micro-tubules are also proteins and they are structural components of the cytoskeleton. They are used as structures for movement with the vesicles .</span>
The right option is lateral
corticospinal tract
The lateral corticospinal tract functions
in the control of distal muscles such as those of the limbs and the trunk. About
90% of the fibers that travel in the corticospinal tract are found in the
lateral corticospinal tract which makes it the main component of the corticospinal
tract.
Petrochemicals include many things, I would say All of the above. Hope this helped! :)