Question

how the oak tree obtains and uses the matter and energy it needs to grow from a tiny acorn into a mature tree

Answer 1

Many oaks have thick bark that protects them from fire. ... They cut down the young trees every 15 to 30 years and use the wood for fires to heat their homes and cook food. The harvested oaks, which have stored energy, or strength, down in their roots, sprout again and form many new, thin branches.