In the Following Figure,two Populations of One Species of Fruit

question 13

Multiple Choice

In the following figure,two populations of one species of fruit flies were raised for several generations on different nutrients (starch and maltose) .Then the members of the two populations were reintroduced and the mating frequencies of flies from the two different populations were recorded.Which of the following is true?

• A) After only a few generations, these two populations have undergone speciation because they no longer mate with each other at high levels.
• B) The two populations are in the early stages of reproductive isolation because male flies are more likely to mate with female flies that were raised on the same medium.
• C) Fruit flies grown on starch for several generations are no longer capable of consuming maltose.
• D) The original population of fruit flies actually consisted of two different species of fruit flies. When hybridization occurred between the two populations, only sterile offspring were produced.

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Definitions:

Negative Symptoms

Features often associated with schizophrenia, including lack of motivation, diminished emotional expression, and reduced social engagement.

Emotional Symptoms

Feelings or emotions that are indicative of a mental health condition, such as sadness, anxiety, or irritability.

Anhedonia

A loss of pleasure or interest in almost all activities or a lack of reactivity to usually pleasurable events.

Alogia

A reduction in the amount of speech output, often observed in individuals with schizophrenia or other mental health disorders.