Before entering the heart, blood from the intestines must first pass through the:
a. brain
b. kidneys
c. liver
d. lungs
e. stomach
c
You might also like to view...
Which gas is increasing the most in the atmosphere, thereby intensifying the greenhouse effect?
a. carbon dioxide b. carbon monoxide c. ozone d. nitrogen e. oxygen
Pregnancy is most likely to occur in a woman with a 28-day cycle if sexual intercourse occurs on day ____.
A. 5 B. 10 C. 15 D. 20
A pelagic animal is
A. sessile. B. a filter feeder. C. a larval form. D. a free swimmer.
In bacteria and eukaryotes, a mutation is when ________
A) the expression of a gene changes without the DNA sequence being changed B) the nucleotide sequence in an mRNA molecule is directly changed C) the amino acid sequence in a protein molecule is directly changed D) DNA is unable to be replicated E) the nucleotide sequence in a DNA molecule is directly changed