<span>tubercle
This kind of outgrowth is mostly common in bone formation as they are used for muscle formation and attached to the tendons. As they are in the skin of humans and animals they are also found in plants as well especially orchid , cacti and certain member of the pear family</span>
Soil is composed of disintegrated rock particles, humus, water and air. Litter is composed of humus and leaf litter. Also called nutrient cycle, The Gersmehl diagram was created in 1976 by P. F. Gersmehl whit the purpose of showing the differences innutrient flow and storage betweendifferent ecosystem
