An Anthropologist Discovers Fossilized Animal Remains That Give Strong Evidence

question 56

Multiple Choice

An anthropologist discovers fossilized animal remains that give strong evidence that the organism had a large, well-formed, most likely 4-chambered heart, with no connection between the right and left sides. Which of the following could most reasonably be hypothesized from this observation?

• A)that the animal and its relatives had evolved from birds
• B)that the animal had a high energy requirement and was endothermic
• C)that the animal was most closely related to reptiles such as alligators and crocodiles
• D)that the animal was a kind of invertebrate
• E)that the species had little to no need to regulate blood pressure

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Definitions:

Terrestrial Biomes

Large geographic regions defined by the dominant plant life and climate, including forests, deserts, grasslands, and tundra.

Mature Taiga

A biome characterized by dense forests of conifers in the northern regions that have reached a mature ecological stage with complex ecosystems.

Mature Tropical Rain Forest

A type of forest found in the tropics characterized by high levels of rainfall, biodiversity, and old, fully developed trees.

Low-pressure Air Mass

A region of the atmosphere where the air pressure is lower than surrounding areas, often resulting in cloudy weather and precipitation.