Julius Was Obese and Repeatedly Failed in His Attempts to Lose

question 60

True/False

Julius was obese and repeatedly failed in his attempts to lose weight,even when his uncle offered him monetary and material rewards.After college,he finally succeeded at getting into better shape.He explained that this time he wanted to do it for himself.According to self-determination theory,the main factor in Julius's success was intrinsic rather than extrinsic motivation.

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Definitions:

Mechanical Isolation

A form of reproductive isolation where physical differences in the reproductive organs of different species prevent interbreeding.

Hybrid Sterility

A condition in hybrid animals or plants where they are unable to produce offspring due to genetic and chromosomal differences between the parents.

Hybrid Inviability

Hybrid inviability is a postzygotic barrier where hybrid offspring fail to survive to maturity, reducing the chances of genes being exchanged between different species.

Temporal Isolation

A mechanism of reproductive isolation in which two species breed at different times, preventing them from interbreeding.