What is the advantage and disadvantage of the Ocotillo and Hummingbird relationship

Advantages:

The plant is an integral member of the regional desert ecosystem and native pollinators such as hummingbirds and carpenter bees consume ocotillo nectar for nutrients. The hummingbird and the ocotillo have an important plant-pollinator relationship, as the hummingbird relies upon the flowers for a nectar source.

a- all cells come from pre-existing cells

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.