Over a long period of time. Any given species has to reproduce multiple times and allow time for defects/deformations etc to happen so that the species can diversify itself. It takes years, decades, even centuries to notice genetic changes in species.
Answer:
34,623
Step-by-step explanation:
427,113 + 38,264 = 465377
500,000 - 465377 = 34,623 books in December must go out to meet the librarian's goal.
Answer:
30 seconds
Step-by-step explanation:
10 ÷ 10 = 1 block
5 ÷ 10 = 0.50
0.50 of a minute is 30 seconds