Respiration involves a reaction between oxygen and
a) hydrogen
b) glycerine
c) water
d) food substanced

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

What goes in and out of a cell respiration?

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird