Well considering birds follow humane rules, their selection and environment around them being thriving could effect their songs in a positive way. While a bird with a low selection of environmental stuff around them would effect their songs in a bad way giving off a more down manner.
The reticular connective. I'm not going to lie, I learned that from NBC Hannibal and I fact checked it and it is correct! XD
The correct option is this: TAN'S MOTHER COULD THINK OF SEVERAL WAYS TO ANSWER A QUESTION LIKE THE ONE DESCRIBED IN THE EXCERPT.
From the passage, it can be seen that, Tan's mother believed that so many things would have fit exactly into those blanks that are present in the questions given to Tan. This shows that the mother's imagination is very active and that those that set those questions have ignored imagination ability of the students.
Answer:
I did this question for a science quiz and the answer is variation trust me I doubled checked on my quiz.
Explanation