Which best describes organisms of the precambrian era?
a. land plants and animals
b. dinosaurs and primitive mammals
c. single-celled organisms and soft, boneless animals
d. ferns and flying reptiles

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Resperation is a way to release carbon back into the atmosphere

How do the evolutionary chart and the video support the claim that all living things are made up of cells?