Answer:
The food type changes in a given environment, then the amount of each type of bird beak will changes as birds with beaks more suited to the available food will consume more successfully over time. The independent variable of the lab is the type of food that is available to the birds.
People, coal, and gasoline are sources of CO2
<span>a.
identifying several solutions to a problem
b.
questioning source information
c.
implementing the first solution to a problem identified
d.
verifying source information</span>
