What is an estuary?
a. where a freshwater river runs into an extension of the ocean
b. where a freshwater river runs into an extension of a lake
c. where a freshwater river runs into land
d. where a freshwater river runs into another river

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body