6. Pinky's science fair project in junior high focused on an observation that the crickets outside her window chirped less frequently when the
temperature was colder.
She collected the following data: The average number of cricket chirps at
different temperatures in her backyard.
a. What is the independent variable?
b. What is the dependent variable?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.