Dalton’s law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the pressures
of the individual gases. Indicate whether the statement is true or false.
True
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Tetanus vaccine contains
A. inactivated bacteria. B. inactivated spores. C. live bacteria. D. inactivated tetanospasmin.
The plant tissue responsible for producing cells that thicken roots and stems is the
A. vascular bundle. B. intercalary meristem. C. apical meristem. D. lateral meristem. E. tracheid.
The defensive mechanisms that target specific pathogens are called ____________ defenses. These responses involve the white blood cells called ____________ .
Fill in the blank(s) with the appropriate word(s).
What happens to the CFTR gene in individuals who have cystic fibrosis?
a. the entire gene is duplicated b. three bases are duplicated, causing one amino acid to repeat about 40 times c. the entire gene is deleted d. three bases are deleted, causing one acid to be missing