There are plants that will forever remain low, like grass, and there are those that in a few years become real giants. Poor trees! People easily chop them, but in order for a tree to grow large and tall, many years must pass.

Curly stems

If the stem of the plant is flexible and thin, it does not have enough strength to stay straight. In this case, they create a support - they stick a stick next to it in the ground around which the plant will wrap itself. This is how a bean sprout behaves, which reaches for light.

Plants are used not only for food. From tree trunks make wood, pulp for making paper, textile fiber. The green world allows a person to receive many natural flavors and chemicals for industry.

Age of trees

If you count the number of rings on it on the foam of a sawn tree, you can find out how old the tree is: every year a new ring appears on the trunk. Therefore, such rings are called annuals.

Climbing Stems

Some plants with a weak stem, such as ivy, have learned to cling to surrounding objects. They stick to various surfaces with their small “fingers,” which have very sticky little suction cups at their tips.

Enemies

Since plant roots are a repository of nutrients, many insects, birds and animals want to feast on them. These are the enemies of plants.The most important underground pests are moles, which, digging their underground passages, damage the roots of plants.