The Evolution of Animal Species Has Been Prolific (The Estimates

question 12

Multiple Choice

The evolution of animal species has been prolific (the estimates go into the millions and tens of millions) .To what does the text attribute much of this diversity?

• A)novel reproductive strategies
• B)a large variety of body plans
• C)a large variety of methods for capturing and processing food
• D)a complex nervous system providing the intelligence for survival in difficult times
• E)the development of multiple tissue types

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Definitions:

Oxygen Deficit

The difference between the amount of oxygen needed for totally aerobic muscle activity and the actual amount used, leading to an early fatigue.

Anaerobic Metabolism

Metabolic processes that occur in the absence of oxygen, generating energy through the breakdown of carbohydrates.

Lactate

A compound produced during the anaerobic metabolism of glucose and used in the body as a source of energy.

Cross-bridge

The connection formed between the actin filament and the myosin head during muscle contraction.