Answer:
12(s) is in its standard state.
Explanation:
The lining of the heart is the pericardium.
The question is asking the determine the role that the United States do in the ecosystem base on the passage and situation in the question that you have state, base on my research, I would say that its role is a Dominant. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
Direct observation is an observation you make first hand. It is something you see with your own eyes and observe yourself.
Hope this helps!
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. so i would say one of those.
