The stem growing upright is an example of: A) Positive Photosynthesis
B) Negative Photosynthesis
C) Positive Geotropism
D) Negative Geotropism

The way plant grows is due to some factors that influence its growth. The stem growing upright is an example of negative geotropism

The shoot tip often shows negative geotropism when it grows against the force of gravity.

The negative geotropism is simply known also as the ability of plant stems and other parts to grow upwards.

Conclusively, it is regarded as negative geotropism only due to the fact that the plant is growing away from the force of gravity.

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D) Negative Geotropism

Explanation:

The stem growing upright is a typical example of negative geotropism.

Geotropism is the growth of a part of plant towards the pull of gravity.

In this case, the negative geotropism is exhibited by some plant roots.

Also, some tree branches can also grow downward and this shows positive geotropism