The white-headed woodpecker is the only bird of North America which are best adapted to dig the trunks of the pine cones through their strong beaks.
These beaks mostly breed and live in the temperate forest which broad-leaf and coniferous forests. These forest heavy rainfall and are wildlife-rich found in regions like Canada.
Thus, the temperate rain forest is the correct answer.
When elongated, tube –shaped cells from the lining of the intestine are treated with a certain chemical in a dish, the cells sag and becomes round blobs. the internal structures disrupted by this chemical are probably microtubules
