LIS11_UNIT 3_WB_1.14, 1.15

Your body makes __________ new blood cells every second.

• A. two million

• B. three million

• C. ten million

• D. four million

Your body makes two million new blood cells ____________.

• A. every second

• B. every moment

• C. every minute

• D. every hour

There are nearly ___________ kilometres of blood vessels in an average adult body.

• A. a hundred thousand

• B. eight hundred thousand

• C. a hundred million

• D. three hundred thousand

There are nearly a hundred thousand kilometres of ___________ vessels in an average adult body.

• A. blog

• B. blood

• C. blue

• D. black

There are nearly a hundred thousand kilometres of blood vessels in an average ___________ body.

• A. older

• B. adult

• C. adults

• D. elder

Only __________ of the cells in our body are human; the other ninety percent are bacteria.

• A. ten percent

• B. twelve percent

• C. two percent

• D. three percent

Only ten percent of the cells in our body are human; the other __________ are bacteria.

• A. ninety percent

• B. nineteen percent

• C. nine percent

• D. ninety nine percent

Only ten percent of the cells in our body are human; the other  ninety percent are _________.

• A. bacteria

• B. material

• C. criteria

• D. bacterocin

Your _________ is only two percent of your body’s weight, but it uses one fifth of the oxygen.

• A. brain

• B. brand

• C. branch

• D. sprain

  Your brain is only two percent of your body’s weight, but it uses _________ of the oxygen.

• A. one fourth

• B. one third

• C. one half

• D. one fifth