Answer:
stomach
Explanation:
it is obious cause even 6 standard children know it
Birds have a hard time in cold weather, because their body temperatures are higher than those of humans They provide warmth and insulation against colder temperatures. Many birds grow extra feathers in the months leading up to colder weather, so that they'll stay warmer when temperatures drop.
I believe that 2 is correct. :)
secondary succesion takes place
