Which statement describes the environmental impact of developed countries? They have a lower rate of population growth. These countries leave the smallest ecological footprint. These countries use the least amount of the world’s freshwater supply. They have a higher rate of population growth.

Why does sexual reproduction increase the genetic variation in a species? a. sexual reproduction doubles the chromosome number. b. sexual reproduction produces organisms with no dna. c. the gametes in sexual reproduction are exact clones of the parents. d. a fertilized egg has a mixture of alleles from the two parents.