Question

a. Both A and R are true and R is correct explanation of A

b. Both A and R are true and R is not correct explanation of A

c. A is true and R is false

d. A is false and R is true

21. Assertion (A)- Salivary glands secret saliva in buccal cavity

Reason(R)- Saliva is discharged in buccal cavity by salivary ducts

22. Assertion (A)- Leech is a ecto-parasite

Reason (R)- It feeds on blood of vertebrates

23. Assertion (A)- Sunlight is absorbed by chlorophyll

Reason (R)- Chlorophyll is present in roots​

Answer 1

Answer:

Both A and R are true and R is correct explanation of A

Both A and R are true and R is correct explanation of A

A is true and R is false