AP BIOLOGY

Detailed explanation-1: -For our purposes, we will simply say that external forces include the applied force, normal force, tension force, friction force, and air resistance force. And for our purposes, the internal forces include the gravity forces, magnetic force, electrical force, and spring force.

Detailed explanation-2: -Well, It is a phenomenon that is called “Gravitropism". Gravitropism is either positive which means “with gravity” or negative gravitropism which means against gravity. It is said that plant and fungi both have negative gravitropism i.e. both of them grow upwards.

Detailed explanation-3: -Soft stems enable prairie grasses to bend in the wind. Narrow leaves minimize water loss. Many grasses are wind pollinated and are well-suited to the exposed, windy conditions of the grasslands. plants have shallow roots to help capture nutrients from the top level of soil.