Indicate If Each of the Following Descriptions Matches Lithotrophic (L)

question 15

Short Answer

Indicate if each of the following descriptions matches lithotrophic (L), organotrophic (O), or phototrophic (P) organisms. Your answer would be a four-letter string composed of letters L, O, and P only, e.g. LLPP.
( ) They feed on other living organisms or their organic products.
( ) They are responsible for the current oxygen-rich atmosphere of the Earth.
( ) They are all known to be prokaryotic.
( ) They are the primary energy converters in hydrothermal vents in the ocean floor.

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Definitions:

Tissue Layer

A group of cells of similar type that work together to perform a specific function within an organism.

Mesoderm

Middle primary tissue layer of an animal embryo that gives rise to muscle, several internal organs, and connective tissue layers.

Cardiovascular

Relating to the circulatory system, which comprises the heart and blood vessels and is responsible for transporting nutrients, oxygen, and waste products throughout the body.

Urinary Systems

A group of organs in the body responsible for the production, storage, and elimination of urine, playing a critical role in the regulation of electrolytes and maintenance of blood pressure.