Which of these is not a typical shape for a bacterial cell?

a. rod
b. spiral
c. spherical
d. all are typical bacterial shapes

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

What is the approximate time of death of the body temperature is 29.4 degrees celsius

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.