There is still some controversy among biologists about whether Neanderthals should be placed within the samespecies as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so farindicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which speciesconcept is most applicable in this example?A) phylogeneticB) ecologicalC) morphologicalD) biological

Option-D

Explanation:

There are many ways to define a species on the basis of the phylogeny, morphology and biological relationships.

The species according to the biological species concept are the organisms which can interbreed and produce the fertile offsprings but show reproductive isolation from other species.

In the given question, the modern humans and Neanderthals showed no gene flow that is they are not able to reproduce between them or we can say that they were reproductively isolated from each other. Therefore they can be classified according to the biological species concept.

Thus, Option-D is the correct answer.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: