The correct answer is option (A) Variation in the strawberry plants.
When the effect of fertilizer on the growth of two strawberry plants is tested, unavoidable source of experimental error is the variation in the strawberry plants. Variation refers to the deviation or differences from the normal plant which can be due to genetic variation. It is due to change in the DNA sequence. If any one of the two plants being tested show variation, the rate of metabolism differs and changes the growth pattern of the plant. The rate of absorption of water and nutrients is effected which brings change in the growth of the plant and causes an error in the experiment and the result.
Answer:
D
It helps the reader to understand which layers of the atmosphere are most important. Don't cheat
No because it still moves along and stays on track
Reduce the amount of carbon, fossil fuels and methane in the atmosphere.
Answer:d. allow water to cross the plasma membrane via facilitated diffusion
Explanation:yeah
