Answer: Chloroplast
Explanation: Pigments give the chloroplast and the plant its color.
Hydrogen bonds i hope that helps
They are made of the same material, a number of substances, common to all, which show a unit of composition.
The temp increased which caused the balloon to expand and burst
Answer:
Evolution by natural selection
Explanation:
Most probably, the trait of being small, weak and slower did not convey advantage (or was even a disadvantage) in survival in their environment. The bigger, stronger and faster horses had an advantage and were able to survive long enough to pass down their genes to the next generation, Over succeeding generations more and more horses, therefore, became strong, bigger and faster. This is the process of natural selection at work.
