What is the basic concept used to justify the building of phylogenetic trees

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A phylogenetic tree, or evolutionary tree, is a branching diagram or "tree" showing the inferred evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics. The taxa joined together in the tree are implied to have descended from a common ancestor.

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How do spores help sustain the population of ferns?

Vladimir79 [104]

Answer:

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There are million of spores that are made by a single plant to help keep its population.

Spores can live for a long time without maturing into an adult plant.

Explanation:

Spores can be described as a means of reproduction in plants like the gymnosperms.

There are millions of spores produced by a single plant so that the chances of their dispersal and maturing into new plants is maximum.

Spores also have the capability to stay dormant until the conditions become favorable for the growth of a plant from the spore.

Another adaptation of spores is that they are light weight so that they can easily be carried away by the wind.