Question

Maintaining a rich variety of genetic material that may lead to discoveries useful to humans can be ensured by

1.preserving biodiversity
2.increasing cloning
3.asexual reproduction
4.selective breeding

Answer 1

The answer would be 1. Preserving biodiversity

Step-by-step explanation:

Since you said "Maintaining a rich variety of genetic material..." then the three other responses wouldn't make sense because they all would have identical or similar genetics.