The liver creates bile, which help break down lipids.
· In an open system matter and energy can be transferred
· In a closed system only energy can be exchanged
· In an isolated system neither matter nor energy can be exchanged
· The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system
· As an open system the cell allows nutrients to enter the cell and waste products to exit the cell
· The cell does this through the use of a semi-permeable membrane
· It needs nutrients in the forms of glucose, ions and many other molecules.
· The nutrients can come into the cell through either passive or active transport
· In passive transport the nutrients naturally move from a higher concentration gradient to a concentration gradient.
· During active transport the particle need to move against the concentration gradient. To do this the cell needs energy to transport the materials. The energy comes in the form of ATP.
Plant Cell Structure is what I think you're asking.
The right answer is C) convection.
Convection (thermal) refers to the transfer of thermal energy within a moving fluid or between a moving fluid and a solid wall. This transfer of energy is achieved by two modes of "elementary transfer" combined that are advection and diffusion.
Convection (thermal) constitutes, with (thermal) conduction and (thermal) radiation, one of the three modes of heat exchange between two systems, and differs from them by the transfer method.
Thermal convection occurs when the body is in direct contact with the fluid.
An aphotic zone is a zone where light can be received from the sun (or other sources of light).
For example in the ocean, it will be the zone that begins a 200m deep and goes to the bottom of the sea.
Hope it's helpful, have a nice day :)
