A cavern is a natural cavity in rock that forms as a result of O A) the dissolution of minerals.
B) stalactites and columns.
O C) columns and minerals.
O D) stalagmites and stalactites

rocks and weathering-matching

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek