MCQ
Bordered pits are very common in
- AMonocotyledons
- ✓Gymnosperms
- CDicotyledons
- DPteridophytes
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$(1)$ Frog is a poikilotherm.
$(2)$ Frog does not have any coronary circulation.
$(3)$ Heart is “myogenic” in nature.
$(4)$ Heart is autoexcitable.