Endorphins are less powerful than enkaphalins radically different in function from neurotransmitters found where neurons meet skeletal muscles pain-reducing neurotransmitters

Name the glands associated with human digestive system

What does the positioning of transcription factors determine?

14) 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.