How many neutrons does the element sodium (Na) contain? a
12
b
11
c
13
d
23

Based on the phylogenetic chart, which three statements are true about the relationship between the organisms? a human is more closely related to a mouse than a kangaroo.a platypus is more closely related to kangaroo than a mouse.a human and a kangaroo share common features because of a common ancestor.a platypus and a mouse are more closely related than a platypus and a kangaroo.a kangaroo and a mouse are more closely related than a mouse and a human.

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Which of these is not a nucleotide base found in dna?