by mutating the birds' genetic traits by altering the birds' social behaviors by decreasing the birds' overall health by increasing the birds' available energy
Scientists studying a group of young sage grouse discovered a large percentage were infected with blood parasites. How will these blood parasites most likely affect the young birds?

Options:
- by mutating the birds' genetic traits
- by altering the birds' social behaviors
- by decreasing the birds' overall health
- by increasing the birds' available energy

by decreasing the birds' overall health