MCQ
In an ecosystem abiotic components includes which of the following?
- AFlow of energy.
- BCycling of materials.
- CConsumers.
- ✓Flow of energy and cycling of materials.
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$(I)$ Vertebrate hearts.
$(II)$ Vertebrate brains
$(III)$ Thorn and tendrils of Bougainvillea andcucurbita respectively
$(IV)$ Vertebrate limbs.
The correct combination is