Which of the following is a false statement?

A
Some deserts we know today once had rivers and lakes.

B
Mass extinctions may have been caused by meteors.

C
Very few species have ever gone extinct.

D
Sometimes, species evolve to be more complex.

Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.