1) Which of the following are scales of ecosystems?
a. Micro
b. Macro
C. Messo
d. Ecotone

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.