Answer:
experiment
Explanation:
When you are controlling the conditions it is called an experiment.
I’m guessing the answer would be the second one!
Answer:
Is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet.
Explanation:
Two amino acids form a peptide bond together as these are just proteins.
Answer:
As the saltier blood circulates through the body, it makes the fluid outside of our body cells saltier than the fluid inside the cells. The cells notice the change right away. That's because the extra salt outside acts like a magnet, pulling water out of the cells.
Explanation: