The Following Questions Refer to This Hypothetical Situation

question 52

Multiple Choice

The following questions refer to this hypothetical situation.
A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island, and the only fly to arrive in this way. Thousands of years later, her numerous offspring occupy the island, but none of them resembles her. There are, instead, several species, each of which eats only a certain type of food. None of the species can fly, for their flight wings are absent, and their balancing organs (in other words, halteres) are now used in courtship displays. The male members of each species bear modified halteres that are unique in appearance to their species. Females bear vestigial halteres. The ranges of all of the daughter species overlap.
-Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then species W and Y

• A) have genomes that are still similar enough for successful meiosis to occur in hybrid flies.
• B) have more genetic similarity with each other than either did with the other two species.
• C) may fuse into a single species if their hybrids remain fertile over the course of many generations.
• D) Three of the above statements are correct.
• E) Two of the statements above are correct.

Identify the unique climatic conditions responsible for the formation of specific biomes.

Understand the role of precipitation and temperature in defining biome types.

Understand the stages and processes of prenatal development.

Identify the physical support systems for an embryo and explain their functions.

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Definitions:

Anus

The terminal end of the digestive tract where feces are expelled from the body.

Azoospermia

A medical condition characterized by the absence of sperm in the semen.

Aspermia

The absence of semen or inability to ejaculate semen, which can result from various medical conditions or treatments.

Anorchism

A medical condition characterized by the absence of one or both testes.