_____ Cause(s)mild and Limited Disease,whereas _____ Cause(s)more Severe Disease and Higher

question 15

Multiple Choice

_____ cause(s) mild and limited disease,whereas _____ cause(s) more severe disease and higher mortality.

• A)Antigenic drift; antigenic shift
• B)Antigenic shift; antigenic drift
• C)Epidemics; pandemics
• D)Pandemics; epidemics.

---

Definitions:

Neural Crest Cells

Embryonic cells that give rise to a diverse range of tissues in vertebrates, including peripheral nerves, the adrenal glands, and facial cartilage.

Diencephalon

The Diencephalon is a region of the brain that includes structures such as the thalamus and hypothalamus, involved in sensory and neural functions.

Telencephalon

The anterior part of the forebrain, encompassing the cerebral hemispheres, responsible for complex functions including voluntary movement and sensory integration.

Anterior Pituitary

The front portion of the pituitary gland, responsible for releasing hormones that regulate various physiological processes.