False,your respiratory muscle expand each time when you exhale.
I think all of them are,polar bears have fur, penguins are suited for water and land, etc
Im gonna answer the ones i stufied in grade5 and back soo question 2 a food web question 4 they break down dead and decaying organic material question7 omnivores
The answer is c because the earth not only is tilted it orbits
If you are implying one these choices not needed for survival it would be parents only when you can survive on your own (I'm not that sure but I hope this helped the slightest but)
