While Scuba Diving, You Recover Several Samples of a Red

question 95

Multiple Choice

While scuba diving, you recover several samples of a red alga that appear almost crimson in color.When you return to your lab and attempt to grow the alga in your saltwater fish tank, new growth of the alga appears bright green.What best explains this phenomenon?

• A) The intensity of light has changed, affecting pigment composition.
• B) The composition of the salt water has changed, affecting pigment composition.
• C) The alga has engulfed a new cyanobacterial endosymbiont.
• D) The alga is missing vital nutrients that allow for the accumulation of phycoerythrin.
• E) The alga is stressed and is slowly dying.

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Definitions:

Rotational Speed

The number of rotations per unit time, typically measured in revolutions per minute (RPM).

Volume of Oil

The total amount of oil contained within a system or component, critical for lubrication and cooling in machinery and engines.

Open Center Circuit

A hydraulic system configuration where fluid returns to the reservoir through the center of the control valve when it is in the neutral position.

Closed-Center Circuit

A hydraulic circuit design where the system pressure is maintained in a closed loop, allowing more efficient fluid control.