Simple, single-celled organisms that lack a nucleus are referred to as which of the following?

a. bacteria
b. fungi
c. prokaryote
d. eukaryote


c. prokaryote

Biology & Microbiology

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What criterion is used to categorize the skeleton into axial and appendicular?

A. whether the bones lie on the midline or on a girdle B. whether the bones articulate with the pelvis or not C. whether the bones contain red bone marrow or yellow bone marrow D. whether the bones are flat or long E. whether the bones are weight bearing or not

Biology & Microbiology

Which of the following is associated with DNA?

a. ribose b. deoxyribose c. single stranded d. uracil

Biology & Microbiology

The water-vascular system is used primarily for:

a. excretion of excess water b. locomotion c. respiration d. circulation e. sensation

Biology & Microbiology

Mobile DNA elements are more common in the genomes of

A) Archaea. B) hyperthermophiles. C) rapidly evolving species. D) pathogens.

Biology & Microbiology