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the xylem transports water and minerals the plants need. water is taken up from the roots normally and is needed at the leaves. so the direction of flow in the xylem is only upwards. also is made of dead ...
The organisms are unable to exchange genes outside of the isolated population. There may be different selective pressures which the organisms must adapt to. This means the features of the species may chan...
The xylem tissue that runs from the roots to the leaves draws water up from the roots as water evaporates from the leaves. This process is called transpiration it is how water is replaced when water evapo...
A reflex action is a way for the body to automatically and rapidly respond to a stimulus. It is able to work so fast because it bypasses the brain. The process is as follows:The stimulus (e.g Pressure, Te...
Asexual reproduction: only needs one parent and uses the process of mitosis to create identical copies (clones) of the parent cellSexual reproduction: two parents are needed in sexual reproduction and use...
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