Answer:
A Strong Acid
Explanation:
Anything below 7 is acidic, and anything above 7 is basic. 7 itself is a neutral solution. Each level you go down is 10 times more acidic than the one above.
A group of similar ecosystems with the same general type of physical environment is called a Biome
Answer:
The recessive trait reappeared about 25% of the time
Explanation:
There were no short plants in the F1 generation, although one of the parents was short. However, the characteristics reappeared in its original form in 1/4 of the F2 plants. He concluded that each hereditary characteristic is determined by two contrasting hereditary factors.
The answer is c. surface tension. These insects usually can make big area interact with water surface and is light itself. So the surface tension can bigger than the pressure.