I think the answer is 9.69892×10^7
Bacteria.
When bacteria are exposed to antibiotics, the antibiotics kill the bacteria that does not have resistance gene while the bacteria that have the resistance gene survive and produce offspring with the gene creating generations of bacteria with a resistance gene. This demonstrates that through natural selection, bacteria are evolving into antibiotic-resistant bacteria. The selective agent is the antibiotic and the main culprits are the humans.
Answer:
Haikouichthys and Myllokunmingia
They will bind to each other if they have complementary shapes and chemical properties.
Edwin Hubble, visionary astronomer and founder of modern cosmology