Symptoms of multiple sclerosis

a. include muscle weakness.
b. include impaired coordination.
c. include vision problems.
d. typically begin between the ages of 20 and
40.
e. are described by all of these.


E

Biology & Microbiology

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Why do early successional stages harbor many r-selected species?

a. they often require shade b. they are long-lived c. they are not damaged by disturbances d. they produce many small seeds that colonize open areas e. they grow slowly

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_____________ directly increases vasoconstriction.

A. Anti-diuretic hormone (ADH) B. Aldosterone C. Atrial natriuretic hormone D. Angiotensin II

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A scientist discovers an unidentified organism that is composed of multiple cells and has a membrane-bound nucleus. Of the choices listed, the most likely classification would be ________

A) Bacteria B) Archaea C) fungi D) Any of the above could be correct.

Biology & Microbiology