Question

I. Both A and R are true and are R is correct explanation of A.II. Both A and R are true and R is not the correct explanation of A.

III. A is true but R is false.

IV. A is false but R is true.

14. A- Metals are sonorous.

R- They are generally brittle in the solid state, they break into pieces when hammered.

15. A- Viruses do not have a cell wall, cell membrane, nucleus and other cell organelles.

. R- Viruses may sometimes kills the host cells.

16. A- Algae are heterotrophic..

R- They do not have chlorophyll.​

Answer 1

go to home and open the books