A distinctive feature of eukaryotes is the organization of tightly packaged chromosomal DNA with proteins into a membrane-bound structure called a:  

A.  nucleolus.
B.  cell.
C.  nucleus.
D.  plasma membrane.


C.  nucleus.

Biology & Microbiology

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Which of the following is a unique organelle found within some protists but not in higher animal cells?

A. Mitochondrion B. Contractile vacuole C. Endoplasmic reticulum D. Golgi apparatus

Biology & Microbiology

A person with which blood type can receive a transfusion from anyone else regardless of their blood type?

a. Type A b. Type B c. Type O d. Type AB e. Type C

Biology & Microbiology

What percentage of oxygen is transported by hemoglobin?

A) 75% B) 98.5% C) 86% D) 1.5% E) 5%

Biology & Microbiology

Which of the following groups consists of large neurons?

A) Stellate, pyramidal, Golgi Type II B) Purkinje, granule, stellate C) Pyramidal, Purkinje, Golgi Type I D) Purkinje, pyramidal, granule

Biology & Microbiology