Difficult words:
cavity - tu: ubytek (w zębie)
decay - próchnica
floss - tu: nić dentystyczna
digest - trawić
lactic acid - kwas mlekowy
genetically altered - zmienione genetycznie
strip - tu: szczep (bakterii)
hydrochloric acid - kwas solny
Difficult words:
cavity - tu: ubytek (w zębie)
decay - próchnica
floss - tu: nić dentystyczna
digest - trawić
lactic acid - kwas mlekowy
genetically altered - zmienione genetycznie
strip - tu: szczep (bakterii)
hydrochloric acid - kwas solny
Difficult words:
cavity - tu: ubytek (w zębie)
decay - próchnica
floss - tu: nić dentystyczna
digest - trawić
lactic acid - kwas mlekowy
genetically altered - zmienione genetycznie
strip - tu: szczep (bakterii)
hydrochloric acid - kwas solny
Exercise:
1. The researches decided to use:
a) bacteria b) viruses c) lactic acid
to eliminate the decay.
2. The bacteria on your teeth produce:
a) sugar b) lactic acid c) hydrochloric acid
3. Genetically altered bacteria can:
a) create new strips b) protect teeth c) cure
4. The new bacteria was tested on:
a) monkeys b) rabbits c) rats
5. The results of tests on humans was:
a) negative b)there wasn't tests on humans c) positive.
Exercise:
1. The researches decided to use:
a) bacteria b) viruses c) lactic acid
to eliminate the decay.
2. The bacteria on your teeth produce:
a) sugar b) lactic acid c) hydrochloric acid
3. Genetically altered bacteria can:
a) create new strips b) protect teeth c) cure
4. The new bacteria was tested on:
a) monkeys b) rabbits c) rats
5. The results of tests on humans was:
a) negative b)there wasn't tests on humans c) positive.
Exercise:
1. The researches decided to use:
a) bacteria b) viruses c) lactic acid
to eliminate the decay.
2. The bacteria on your teeth produce:
a) sugar b) lactic acid c) hydrochloric acid
3. Genetically altered bacteria can:
a) create new strips b) protect teeth c) cure
4. The new bacteria was tested on:
a) monkeys b) rabbits c) rats
5. The results of tests on humans was:
a) negative b)there wasn't tests on humans c) positive.