So that the plant doesn't become extinct
Ventilation is the process which the air moves in and out of the lungs. Diffusion is the movement of gases without the use of energy and or effort by the body. Hope this helps!:)
I believe the correct answer from the choices listed above is the second option. <span>The building blocks of a habitat consist of environmental factors. Hope this answers the question. Have a nice day.</span>
It has properties of the ordinal level of measurement and
the differences in the values of the variable have meaning. A value of zero in
the interval level of measurement does not mean the absence of the quantity.
Arithmetic operations such as addition and subtraction can be performed on
values of the variable is called interval.
While nominal the values of the variables name, label or categorize. In
addition, the naming scheme does not allow values of the variables to be
arranged in a ranked or specific, order.
