Which is not part of macroevolution?

mass extinction

genetic drift

new species

evolutionary trends

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?