Question

1.Human heart is divided into … chambers.
a four
b.three
c.two
d.one

2.The human lungs are made up of …, which are surrounded by numerous ….
a.gases, blood vessels
b.blood vessels, air sacs
c.air sacs, hairs
d.air sacs, blood vessels

3.To allow digested food, water, and gases to pass through, blood vessels have very … walls.
a.thin
b.thick
c.smooth
d.muscular

Which of the following statements are true about our blood vessels? A: All blood vessels are of the same size. B: All blood vessels perform the same function. C: Some blood vessels cary blood away from the heart. D: Some blood vessels cary blood to the heart.
a.C and D only
b.A and D only
c.B, C, and D only
d.B and C only​

Answer 1

Jawaban:

1.a.four

2.a.

3.c.

a.

Penjelasan:

maaf klo salah