there are many characteristics that are determined only by the environment. For example, the color of a chameleon's skin changes depending on the color of the environment it is in. This is a form of camouflage that allows the chameleon to blend in with its surroundings and avoid predators.
Another example is the shape and size of trees. Trees growing in windy areas tend to have a more compact and sturdy shape, while trees in still environments can grow taller and thinner. This is because the wind creates a selective pressure that favors trees with certain characteristics.
Evidence to support this can be found in observations of animals and plants in different environments. For example, scientists have observed chameleons changing their skin color to match their surroundings in the wild. Similarly, studies have shown that trees growing in windy areas tend to be shorter and sturdier than trees growing in still environments.