To Control the Movement of Gases, Land Plants Developed

question 79

Multiple Choice

To control the movement of gases, land plants developed:

• A)stomata.
• B)a cuticle.
• C)flowers.
• D)vascular tissue.
• E)lignan.

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Definitions:

Creutzfeldt-Jakob Disease

A rare, degenerative, invariably fatal brain disorder caused by an abnormal form of a protein, leading to rapid cognitive decline and, eventually, death.

Huntington's Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, affecting an individual’s functional abilities and usually resulting in movement, cognitive, and psychiatric disorders.

Alzheimer's Disease

A progressive neurological disorder that causes memory loss, impaired thinking, and changes in behavior, stemming from the degeneration of brain cells.

Concussion

A type of traumatic brain injury caused by a blow to the head or body, a fall, or another injury that jars or shakes the brain inside the skull.