Why Have Biologists Hypothesized That the First Land Plants Had

question 6

Multiple Choice

Why have biologists hypothesized that the first land plants had a low,sprawling growth habit?

• A)At the time of the first land plants,the atmosphere had oxygen mainly close to the ground.
• B)Land animals of that period consumed erect plants.
• C)The ancestors of land plants,green algae,lack the structural support to stand erect in air.
• D)Land animals of that period were small,so they needed short plants to eat.
• E)Only fossilized plants exhibit this habit.

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Definitions:

Island Chain

A series of islands closely located, often formed by volcanic activity, which can be found in oceans and seas around the world.

Economic Service

Services that lead to the production of economic value, including industry, banking, transportation, and any service contributing to the economy.

Wild Species

Plants, animals, and organisms that grow or live wild in an area without being introduced by humans.

Human Activities

Actions undertaken by humans that affect the natural environment, which can include industrial production, agriculture, and urban development.