Today there are known elements. A) four
B) more than 10
C) more than 100
D) more than 1000

In attempt to solve the working problems created by the industrial revolution, the united states and many countries in europe considered and/or adopted

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

Which are reasons cells undergo cell division?