It would be A. Iron & Nickel.
Hope it helps you!:)
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<span>Two types of treatments: type of seed and fire.
Type of seeds: 1. Known seed type that requires fire. 2. Known seed that is killed by far. 3. Experimental/unknown seed.
Fire treatments: 1. No fire. 2. Fire. </span>
C. Mutuality Relationship.
They have a mutual relationship by which both benefit.
When the hummingbird takes a sip off the daffodil, they are not sucking their strength out, they are simply sucking out pollen, which they then transfer to other flowers.
This process benefits both the plant and the bird.
