Why the rainforest in Costa Rica is not rich with plants? Remember to use scientific language

Deforestation is the major problem causing lack of rich species in Costa Rica. This is due to over grazing by cattle.This may lead to flooding which affect fertility of the soil.These animals graze on  the plants without regulations,and cause erosion as their hoofs percolate the soil,  further reducing soil fertility.

In addition to sustain the beef production,  trees were fell to for cattle ranching.This ultimately contributed to loss of the forest species.

Banana plantation is an  additional factor.Forest were cleared to cultivate banana, which affects forest population.

Explanation:

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.