How would the temperature on earth change without the greenhouse effect? a. the temperature at the equator would be warmer. b. the temperature would stay the same. c. it would be 30°c warmer. d. it would be 30°c cooler

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.

Electrochemical cells provide energy by allowing electrons to flow through an external circuit to electrodes contained in an electrolyte

Read the article and use the information to answer the following questions hormones follicle-stimulating hormone (fsh) is produced by the . its role is to . luteinizing hormone (lh) is produced by the . its role is to