Bottom-Up Control of Primary Productivity Refers to Control by All

question 45

Multiple Choice

Bottom-up control of primary productivity refers to control by all of the following except ________.

• A) light
• B) grazing
• C) nutrients
• D) temperature
• E) salinity

---

Definitions:

Conglomerate

A coarse-grained sedimentary rock composed of rounded clasts (rock fragments) cemented by finer-grained materials.

Igneous Rocks

Rocks formed through the cooling and solidification of magma or lava, categorized into intrusive and extrusive types.

Metamorphic Rock

Rock that has been transformed from an original form (sedimentary or igneous) into a new form through heat, pressure, and chemical processes, without melting.

River Terrace

A flat, bench-like structure alongside a river, formed by the river cutting deeply into the land then retreating, leaving a raised platform.