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.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.