Why are some fossils found in lower layers and not upper layers? (give 2 answers of why this is)

Order the steps of protein synthesis. amino acids are lined up in a sequence. rna is modified into mrna. dna is transcribed. a ribosome binds to mrna. chemical bonds are formed and a protein is produced.

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Animals such as pronghorn antelope, bison ans badgers dot to the landscape. where are these animals located?