How do cricket make their chirping sound

The bottom of a cricket wing is covered with teeth-like ridges that make it rough. The upper surface of the wing is like a scraper. When crickets rub the upper and lower parts of their wings together, they create a chirping sound called “stridulating." ... The warmer it is, the more crickets will sing.

Explanation:

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

the eggs of the insects should be the first thing collected at the scene.

false