it is either A or D let me know
Answer:
A symbiotic relationship is the one where the interaction of different types of species takes place. The two species remain in close proximity. The relationship can be either harmful, or beneficial for both of the species. Commensalism, parasitism and mutualism are the examples of the symbiotic relationship. In commensalism, the two species lives in close association and one species receives the benefit and the other receives no harm and benefit. In parasitism, the two species lives in close association, in this one species receives the benefit and cause harm to the other species. In mutualism, the two species lives in close association, in this both species receives the benefit of association.
Explanation:
Every soil originally formed from parent material : a deposit at the earths surface. The material could have been bed rock that weathered in place or smaller material carried by flooding rivers, moving glaciers or blowing winds.
The graph that best shows the general relationship between the temperature of a gas and the speed of the molecules in that gas is B.
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy that an object or particle has as a result of its motion. When work transferring energy, is done on an object by applying a net force, the object accelerates and goes under kinetic energy.
The missing graphs are attached as image.
The average kinetic energy of gas molecules is

K∝T
So as per above equation, K-T graph is a straight line having a finite slope and passing through the origin.
Thus, option B is correct.
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A simple light microscope should be enough. you can adjust it to a higher magnification. electronic microscope the magnification might be too high for this, but sure it can do the work too, especially when you're looking for a more detailed information