Question

Observations from plant breeding and animal husbandry over thousands of years has shown:

variations are limited to the confines of a particular taxon

step by step transitions between divisions or phyla have occurred

variation is the result of evolution from one species to another

observable changes from one basic kind into another have never been documented

Answer 1

The correct answer is -

variations are limited to the confines of a particular taxon (only if is is lower taxa)

observable changes from one basic kind into another have never been documented

Step-by-step explanation:

The higher will be the taxa the lesser the effect of the variation takes place so the variations are often limited to the confines of lower taxa. Higher taxa show the difference from other organisms if the huge changes take place due to the set of variations.

As this is a method that is not supposed to be part of ongoing researches so, such observable changes that take place due to the variation have never been documented.

Thus, the correct answer is - 1 and 4 statements.