If you are talking about frequency in terms of waves, it is in seconds^-1
Answer: He didn’t grow a plant without fertilizer.
Explanation: Manu has nothing to compare his plant to. Meaning, he cannot prove that fertilizers help plants grow. He needs to grow a plant with and without fertilizer.
The answer is B. Females have two X chromosomes
Just so you know...
Males have one X and one Y
Hope this helped!
~Just a girl in love with Shawn Mendes
