A Distinctive Form of This Pictured Organism Is Found in Each

question 29

Multiple Choice

A distinctive form of this pictured organism is found in each geologic period.Which statement(s) about this organism is/are true?

• A)The organisms pictured are foraminiferans,members of Supergroup Rhizarian and have a skeleton called a test.
• B)These organisms may be used as index fossils to date sedimentary rock.
• C)The Egyptian pyramids are built of this type of limestone.
• D)All of the above are true.
• E)The organisms pictured are foraminiferans,members of Supergroup Excavates.

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Definitions:

Ganglion Cells

Neurons located in the retina that receive visual information from photoreceptors via intermediate bipolar cells and transmit it to the brain.

Thalamus

A brain structure that acts as a relay station for sensory and motor signals to the cerebral cortex.

Neurons

Specialized cells transmitting nerve impulses; the basic building blocks of the nervous system.

Color Blindness

A visual impairment where an individual has difficulty distinguishing between certain colors, often red and green.