Which Step Occurs Early in the Formation of Both Arbuscules

question 128

Multiple Choice

Which step occurs early in the formation of both arbuscules and root nodules?

• A) Invasion of a plant root by a fungus
• B) Invasion of a plant root by a bacterium
• C) Recognition by the microbe of strigolactones produced by the root
• D) Invasion of root cells,with no direct contact between plant and microbe cell contents
• E) Invasion of root cells,with direct contact between plant and microbe cell contents

Understand the concept of waste and its impact on the environment.

Understand the estimated number and diversity of species on Earth.

Recognize the breadth of ecology including its definition, goals, and the importance of interaction among organisms and their environment.

Learn the different spheres of the Earth and their significance in ecology (atmosphere, hydrosphere, lithosphere, biosphere).

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