MCQ
During diastole
- ABlood enters lungs
- BBlood leaves the ventricle
- CBlood leaves the heart
- ✓Blood enters the heart
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$(i)$ Leucocytes disintegrate in the spleen and liver.
$(ii)$ $RBC, WBC$ and blood platelets are produced by bone marrow.
$(iii)$ Neutrophils bring about destruction and detoxification of toxins of protein origin.
$(iv)$ The important function of lymphocytes is to produce antibodies
| List-l (Interacting species) | List-II (Name of Interaction) |
| (A) Flamingoes and resident fishes | (I) Competition |
| (B) Lice on humans and ticks on dogs | (II) Parasitism |
| (C) Lichens | (III) Mutualism |
| (D) An orchid growing on a mango branch | (IV) Commensalism |