It all depends on the species, some lose all of their leaves for part of the year while others lose their leaves before the next growing season, retaining some during winter or dry periods.
It could possibly harm other plants and if those plants become less and are a good source for animals, the animals would most likely die
before u a lab u should tie loose hair back, and know the locations of all exits
Answer:
The answer is: passing laws to prevent a certain type of scientific research.