Practice Questions

TLS Online TPP Program

#Question id: 24463

A 56-year-old female was diagnosed with a tumor near the base of the skull, impinging on her optic tract. Which of the following statements about the central visual pathway is correct?

#Unit 7. System Physiology – Animal

The fibers from each temporal hemiretina decussate in the optic chiasm, so that the fibers in the optic tracts are those from the temporal half of one retina and the nasal half of the other.
In the geniculate body, the fibers from the nasal half of one retina and the temporal half of the other synapse on the cells whose axons form the geniculocalcarine tract.
Layers 2 and 3 of the visual cortex contain clusters of cells called globs that contain a high concentration of cytochrome oxidase.
Complex cells have a preferred orientation of a linear stimulus and, compared to simple cells, are more dependent on the location of the stimulus within the visual field.

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TLS Online TPP Program

#Question id: 9182

#Unit 9. Diversity of Life Forms

Imagine that a deep temperate zone lake did not turn over during the spring and fall seasons. Based on the physical and biological properties of limnetic ecosystems, what would be the difference from normal seasonal turnover?

TLS Online TPP Program

#Question id: 3354

#Unit 11. Evolution and Behavior

What kind of speciation would you call this?

TLS Online TPP Program

#Question id: 5535

#Unit 5. Developmental Biology

What type of animal forms a trophoblast for the duration of its early development?

TLS Online TPP Program

#Question id: 11022

#Unit 7. System Physiology – Animal

A 55-year-old man had the following EKG recorded at his doctor’s office during a routine physical examination.