Which of the following is not part of the nitrogen cycle?
a) nitrification
b) denitrification
c) ammonification
d) precipitation

What is called the "building block" of life?

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction