Which of the following describes a feedback mechanism
of the endocrine system?

A. an involuntary reaction that controls the way an organ works

B. a way to remove waste in response to more food being digested

C. a change in the number of hormones that affect certain body cells

D. an increase in electrical signals from the nerves to the brain

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

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.