Which best describes the differences? (PLEASE ANSWER ASAP!! I WILL AWARD BRAINLIEST) (image below)
1. The cactuses in 1970 had smaller spines than the cactuses in 2015.
2. The cactuses in 1970 had larger spines than the cactuses in 2015.
3. There were more cactuses in 1970 than there were in 2015.
4. There was more variation in spine size in 1970 than there was in 2015.
