Scientists Working with Phylogenetic Trees Assume That Species That Are

question 68

Multiple Choice

Scientists working with phylogenetic trees assume that species that are more closely related are those species that have

• A) the larger gene pools.
• B) the greatest number of traits in common.
• C) the oldest known fossils.
• D) the most similar habitat and niche.

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Definitions:

Nitric Oxide

A gas that functions as a signaling molecule in the body, playing roles in the immune system, neurological system, and regulation of blood vessels.

Carbon Monoxide

A colorless, odorless, and toxic gas produced by incomplete combustion of carbon-containing materials.

Hydrogen Sulfide

Hydrogen sulfide is a chemical compound with the formula H2S, a toxic, colorless gas with a characteristic odor of rotten eggs, commonly produced by the bacterial breakdown of organic matter in the absence of oxygen.

Neural Integrations

The process by which neurons in the brain combine multiple sources of information to generate a coherent response or action.