In a freshwater lake, a population of bony fish called the stickleback were studied over several decades. The presence of armor
plating over the bodies of the males was noted. The data is shown below. What explains the trend shown in the data for the freshwater sticklebacks? A) Armor-plating offered a protection from predation, therefore the presence of armor-plating increased in frequency.
B) Partially plated males were the preferred mating partner with female sticklebacks, causing an increase in partial armor frequency.
C) Armor-plated males were more efficient at migrating to salt water areas for reproduction, resulting in armor-plating increasing in frequency.
D) Armor-plated males were slower at acquiring food compared to the non-armored phenotypes, resulting in non-armored males to increase in frequency.
Amoebas are single-celled organisms, which means that they are composed of just one cell. Each amoeba is a cell capable of performing all living functions by itself. They can reproduce asexually. They are protozoans with no fixed shape. Most have no hard parts and look like blobs of jelly.
