Particles are spaced the furthest apart in ??? and the closest together in ??

-gases, liquids
-gases, solids
-solids, gases
-liquids, solids

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

How does the fossil record provide evidence that the modern whale evolved from the anthracotheres? a) the modern whale looks like their ancestor the anthracotheres. b) the modern whale has all of the same structures as their ancestor. c) there is not enough evidence to suggest the the modern whale evolved from the anthracotheres. d) the anthracotheres has a structure that is still present in the modern whale, but is no longer of use to the modern whale.