Look at the picture of the fragmented rock.

what has most likely caused it to break up like it is?
a.
cutting with a knife
b.
physical weathering
c.
drilling holes with a drill
d.
chemical weathering

One of the purposes of transcription is to produce a sequence of bases that

The sea slug that considered to be a photosyntheesizing animal

How is anaerobic respiration affected by changes in temperature? (5 points)based on the conditions of early earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at earth’s beginning? explain your answer.(5 points)if there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. explain your answer. (5 points)