Answer the following question: Fact 1: Prokaryotes are single-celled organisms that lack a nucleus. Fact 2: Prokaryotes are usually microscopic and bacteria is an example of a prokaryote. Given the two facts above, what do some bacteria lack?

pick from the following.
(a). Energy;
(b). nucleus;
(c). glucose;
(d). Energy.;
(e). properties;
(f). oxygen;
(g). alleles;
(h). warmth;
Answer:
(b).