The Similar Fusiform Body Shape of Diverse Animals, Such as Sharks

question 16

Multiple Choice

The similar fusiform body shape of diverse animals, such as sharks, penguins, and aquatic mammals, has evolved because

• A) natural selection typically has no limits when different organisms face the same challenge.
• B) respiration through gills is enhanced by having a fusiform shape.
• C) this is the body shape that makes it possible for aquatic animals to swim rapidly.
• D) the fusiform shape is coded by the same genes in all three types of aquatic animals.
• E) all three types evolved from the same ancestral form, which flew in air rather than swam in water.

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Definitions:

Hydrothermal Vents

Openings in the ocean floor that release heated water rich in minerals, supporting unique ecosystems based on chemosynthesis rather than photosynthesis.

Mass Depletion

refers to the significant reduction of natural resources or materials on Earth due to human activities or natural processes.

Extinction Rate

The rate at which species and populations of organisms die out over time, often accelerated by human activities and environmental changes.

Environmental Conditions

The various physical and biological factors that influence the life and activities of organisms, including climate, soil, and water.