Answer:
The correct answer choice is B
Explanation:
We use these brackets in the first place to show the main molecule interconnection with other appendage molecules. For example, Ca(OH)2. The main molecule of calcium is joined with other two molecules and brackets are showing interconnection simply. However, these brackets can't tell us about the orientation and position of bond in 3D space. We have to utilize stereo-chemistry for that...
C. Organ System
Like said in the definition above, an organ system is a group of organs working together to perform a specific function for the organism.
hope this helps !! have a great day :))
Answer:
I suppose it would be the seed.