Minerals Are All Naturally Occurring Solid Substances with a Definable

question 23

Multiple Choice

Minerals are all naturally occurring solid substances with a definable chemical composition.They must also possess ________.

• A)an ability to be synthesized in the laboratory as well as be found in nature
• B)metallic elements,such as iron,calcium,or magnesium
• C)a nonmetallic,vitreous luster
• D)a fixed crystalline structure (spatial arrangement of atoms and ions)

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Definitions:

Lysogenic Cycle

A type of phage reproductive cycle in which the viral genome usually becomes integrated into the host DNA as a prophage; it is replicated along with the host DNA and does not kill the host cell. Compare with lytic cycle.

Lytic Cycle

A type of phage reproductive cycle in which the release of phages from the bacterial cell results in rapid cell lysis (destruction). Compare with lysogenic cycle.

Ebola Hemorrhagic Fever

A severe viral disease causing high fever and internal bleeding, often leading to death, caused by the Ebola virus.

Pathogens

Microorganisms or agents that can cause disease in their host, including viruses, bacteria, fungi, and protozoans.