Most Animals with Backbones, Vertebrates, Have a Similar Body Plan

question 72

Multiple Choice

Most animals with backbones, vertebrates, have a similar body plan: skull, ribs, two pairs of limbs, tail. What does this suggest about vertebrates?

• A) Vertebrates are the best designed organisms.
• B) Vertebrates have been around longer than most other organisms.
• C) Vertebrates all have similar lifestyles.
• D) Vertebrates all adapted to similar environmental conditions.
• E) Vertebrates are all related to a common ancestor.

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Definitions:

Affected Groups

Populations or segments of society that experience impacts, either positive or negative, due to specific policies, events, or changes in environmental or economic conditions.

Lorenz Curve

A graphical representation used to show the distribution of income or wealth within an economy, illustrating the degree of inequality.

Constructed

Developed or formed through a deliberate process of bringing components or elements together.

Social Insurance Programs

Government-run programs designed to provide financial protection to citizens against economic risks (e.g., unemployment, disability, or retirement).