Tropism

This is thigmotropism because thigmotropism means the plant grows from a touch like a touch from a tree. The plant will then 'climb' the tree.

This is heliotropism because heliotropism means plant growth in direction of light. The plant is growing towards the sun.

This is heliotropism because the plant is 'looking' at where the light is coming from.

This is an example of thigmotropism because the plant 'climbs' up something such as a vine climbing a tree.

This is heliotropism because it leans toward the light source which is the sun for maximum light availability.

This is probably both geotropism and heliotropism since the stem is getting weighed down by gravity and the leaves with chloroplasts aim toward the light.

This is geotropism because it means plant growth in relation with gravity. It means a plant grows due to gravity (probably down).