You Are Studying a Plant Whose Seeds Persist in the Soil

question 52

Multiple Choice

You are studying a plant whose seeds persist in the soil for a long time, normally only germinating when the seeds are brought to the surface in full sun by a disturbance such as a tree fall. However, in one of your experimental lineages you find that many seeds germinate when the surface is in full sun even if the seeds are buried too deep to grow to the surface before exhausting their reserves. You suspect that this lineage has a mutation that inhibits:

• A)blue light sensing.
• B)the conversion of P_r to P_fr.
• C)the conversion of P_fr to P_r.
• D)the conversion of P_fr to P_r in the dark.
• E)None of the answer options is correct.

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Definitions:

Abiotic

Non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.

Interspecific Competition

The interaction between members of different species that vie for the same resource in an ecosystem (e.g., food or living space).

Intraspecific Competition

The interaction between members of the same species that vie for the same resource in an ecosystem (e.g., food or living space).

Moose Population

Refers to the number and distribution of moose within a particular geographical area, important for understanding ecosystem dynamics and conservation efforts.