In this food pyramid, about of the available energy is transferred to each level. a) 10% b) 25% c) 50% d) 90%

How do living things obtain phosphorus

What name is given to the process in which a strand of dna is used as a template for the manufacture of a strand of pre-mrna?

What is the role of dna helicase during dna replication? a. to unwind the duplex dna b. to attach primers to the replicating strands c. to add bases in the sugar-phosphate backbone reset