Comparison of the Wings of Birds and the Wings of Bats

question 19

Multiple Choice

Comparison of the wings of birds and the wings of bats reveal that they____.

• A)are completely homologous structures
• B)are completely analogous structures
• C)are completely homoplastic structures
• D)are vestigial structures
• E)have homoplastic and homologous components

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Definitions:

Neurons

Specialized cells that transmit nerve impulses; they are the fundamental units of the brain and nervous system.

Cephalocaudal Development

A pattern of growth where development proceeds from the head downwards towards the rest of the body.

Miscarriage

The spontaneous loss of pregnancy before the fetus can survive outside the womb, typically occurring within the first 20 weeks of gestation.

Testosterone

A steroid hormone primarily produced in men's testes and women's ovaries, significant for regulating sex drive, bone mass, fat distribution, muscle mass, and strength.