Which Feature Is Believed to Have Been the First Step

question 46

Multiple Choice

Which feature is believed to have been the first step in the evolution of land plants from the green algae?

• A) protection of the embryo
• B) evolution of vascular tissue
• C) evolution of microphylls
• D) evolution of seeds
• E) evolution of flowers in order to attract pollinators It is believed that the evolution of protection for the embryo was the first step required for the evolution of land-based plants. Without an embryo that could survive on land, the rest of the features would have been useless.

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Definitions:

Models

Representations, often simplified or idealized, used to explain, predict, or simulate complex systems or behaviors.

Real-world Concerns

Issues or problems that affect individuals, communities, or societies in practical, everyday life rather than theoretical contexts.

Negative Reinforcement

A behavioral principle where the removal of an unpleasant stimulus following a behavior makes the behavior more likely to occur in the future.

Punishment

A consequence that follows an undesirable behavior, with the intention of decreasing or eliminating that behavior.