An example of serious poaching problems is the diminishing population of Tigers.
For example in India, this has severely affected the survival-probability of tigers. There were 20000 Tigers in India in the 20th century, and now there are only 3000. This shows the severity of the problem. The government is now taking serious steps against the poachers.
It is common to all organisms because all organisms evolved from the same ancestor over a large period of time and these ancestors shared a genetic code.
The ground tissue is similar to animal organs.