Animals behave in order to satisfy needs.

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

Cells destroy body cells infected by a virus or bacteria.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?