Dissimilatory Sulfide-Oxidizers Use a Variety of Unique Ecological Strategies in Order

question 74

Multiple Choice

Dissimilatory sulfide-oxidizers use a variety of unique ecological strategies in order to

• A) avoid the toxicity of hydrogen sulfide.
• B) position themselves at interfaces where sulfide and oxygen meet.
• C) position themselves where there is sufficient light for sulfide oxidation.
• D) find organic carbon substrates.

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Definitions:

Preembryonic Structures

The earliest forms and structures developed in the embryo, crucial for the subsequent developmental stages.

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest stage of embryonic development.

Implantation

The process by which a fertilized egg attaches itself to the lining of the uterus, beginning the pregnancy.

Blastocyst

An early stage of embryonic development that consists of a sphere of cells surrounding a fluid-filled cavity and a cluster of cells called the inner cell mass.