Question

what do you mean by :1) dantal caries 2) hypertension 3) xylem vessel 4) sieve tube​

Answer 1

1)dental caries =tooth decay=when a plaque stick to teeth then bacteria acting on sugar produce acid which melts enamel...

2) hypertension=high blood pressure,when systolic pressure is more than 120mm of hg.

3)Xylem vessel=tube which transport water and Minerals in plant...

4) sieve tube=tube which transport foods in plant...

hope it is clear for you frnd..

Answer 2

)dental caries =tooth decay=when a plaque stick to teeth then bacteria acting on sugar produce acid which melts enamel...

2) hypertension=high blood pressure,when systolic pressure is more than 120mm of hg.

3)Xylem vessel=tube which transport water and Minerals in plant...

4) sieve tube=tube which transport foods in plant...

Please mark my answer as brainliest.