An Adoptive Twin Study Is Conducted to Examine the Role

question 197

Multiple Choice

An adoptive twin study is conducted to examine the role of genetics and environment on sociability. Which result would lead to a conclusion that environmental factors are important in the development of this trait?

• A) Identical twins reared together are more similar on the trait than are identical twins reared apart.
• B) Identical twins reared together are no more similar on the trait than are identical twins reared apart.
• C) Identical twins reared together are less similar on the trait than are identical twins reared apart.
• D) Identical twins reared apart are more similar on the trait than are fraternal twins reared apart.

Understand the principles of optimal foraging theory and habitat selection.

Explain the mechanisms and significance of circadian rhythms in animals.

Assess the costs and benefits associated with specific animal behaviors.

Grasp the concept of territorial behavior in relation to resource availability and reproductive strategies.

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Definitions:

Epigastric Pain

Discomfort or pain located in the upper abdominal region, particularly between the chest and the belly button.

Gestational Trophoblastic Disease

A group of rare diseases in which abnormal trophoblast cells grow inside the uterus after conception.

Polyhydramnios

An excessive accumulation of amniotic fluid during pregnancy, which can lead to complications for both the mother and fetus.

Fetal Renal Malformations

Abnormalities in the development of the kidneys or urinary tract of a fetus, which can affect kidney function.