Found a similar question with the following choices:
a. living things and flowing water
b. climate and soil properties
c. physical setting and biological community
d. climate and landscape features
In a watershed system, the two main parts are the A. LIVING THINGS AND FLOWING WATER
Answer: Life span, Life expectancy.
Explanation:
I believe it’s B? I just dug out my old cell theory stuff lol that’s what Im gathering from it
I think it’s C because if you’re allergic to one cillian than you’re allergic to all of them
Sorry if this is wrong