Plants with weak stems will try to climb any support that is firm to hold on to in order to get enough sunlight. The support can be other plants nearby, brick walls or even sticks projection from the ground.
No
No
Plants with weak stems are either creepers, climbers or twinners. Very often these plants have specialized structures like tendrils, climbing roots or hooks to push them up to get more sunlight.
yes stems do have leaves because if leaves have stems then stems have leaves
Because of positive geotropism. All plants even the ones with weak stems do this.
some plants need support to climb upwards because they are have tender stems
Climbers have weak stems and devices to climb up by hooks, tendrils or climbing roots.
Plants with weak stems will try to climb any support that is firm to hold on to in order to get enough sunlight. The support can be other plants nearby, brick walls or even sticks projection from the ground.
Vine.
Orchids have strong stems.
No
No
herbs are very small plants with soft,thin and weak stems.
Any grass plant would have weak stems because they are not woody. However, "cow grass" does not exist rendering this question moot.
Using their stems to climb on a support
No, not usually compared with most plants like that.