Fact 1: Some parasites kill their host, but most do not. Fact 2: Parasites thrive on tissues in living hosts. Given the two facts above, what do parasites live on?

Possible answers: 1). animals; 2). skin; 3). plants; 4). fungi; 5). tissue; 6). food; 7). bacteria; 8). orchids;
The answer is:
5).