Which of the Following BEST Describes the Benefit to Early

question 41

Multiple Choice

Which of the following BEST describes the benefit to early photosynthetic organisms gained by having two different photosystems in one cell?

• A)These organisms produced carbohydrates at twice the rate of organisms with a single photosystem.
• B)They produced oxygen.
• C)They could use water as an electron donor.
• D)They could thrive in places where there was little or almost no light.

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Definitions:

Capillaries

The smallest blood vessels in the body's circulatory system, responsible for the exchange of oxygen, carbon dioxide, and other substances between blood and tissues.

Bowman Capsule

A double-layered structure surrounding the glomerulus of each nephron in the kidneys, involved in filtration of blood to form urine.

Urine Flow

The process of elimination of liquid waste from the body through the kidneys, ureters, bladder, and urethra.

Ureter

A pair of tubes that carry urine from the kidneys to the bladder in the urinary tract system.