This is called peer review. A peer is a person of at least equal standing in the area of intellect to the person being reviewed.
Answer:
You should use mineral water but you can also use tap water too, as long as you remove chemicals that are potentially toxic to fish.
Explanation:
Answer:
After one hour, you would need to observe the color the water became.
Early foragers generally spend their several hours a week
when gathering food as it will take time for them to hunt and to gather
supplies and foods they could find since they don’t have enough tools compared
to what we have now which are more advance and has more benefits to people that
the tools that they used before.
1. I belive the answer is B.They can grow large
Multicellular organism will be connected with each other. This will allow them to form big and well coordinated organs. Multiple neuron can form a long fiber that stretch from the brain to the end of the every body part.
The cell should not be the same as it could differentiate into a more specific cell. The cell should not reproduce quickly as their growth will be regulated. The cell also doesn't have to do all function by itself as they could rely on other cells.
2. I believe the answer is: A. They can form complex organ systems
Multicellular organism could have a well differentiated organ and form an organ which have specific function. This will allow them to do a complex work that could not be achieved by one cell. Kidney could do filtration, absorption and reabsorption which could be achieved by multiple structure formed by different kind of cells.