Bell and collaborators painstakingly documented a population of fossil sticklebacks from an ancient freshwater lake over a 20,000-year period. The prevalence of sticklebacks with full and reduced pelvises changed over time. Which is true?

the answer is correct since species undergo evolutionary changes over time

Explanation:

These evolutionary changes are due to the fact that there could be modifications in the environment of living organisms, that is, in the water, which leads to different populations over time.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you